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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी बहुपद के ग्राफ में (x)-अक्ष के साथ प्रतिच्छेद बिंदुओं की संख्या (0), (1), या (2) हो सकती है और वह द्विघात है तो कौन सा कथन सबसे सही है?

If a quadratic polynomial graph may have (0), (1), or (2) intersection points with the (x)-axis, which statement is most correct?

Explanation opens after your attempt
Correct Answer

A. वास्तविक शून्यकों की संख्या प्रतिच्छेदों की संख्या के बराबर होती हैThe number of real zeroes equals the number of intersection points

Step 1

Concept

Geometrically each (x)-axis intersection gives one real zero. A quadratic may have (0), (1), or (2) real zeroes.

Step 2

Why this answer is correct

The correct answer is A. वास्तविक शून्यकों की संख्या प्रतिच्छेदों की संख्या के बराबर होती है / The number of real zeroes equals the number of intersection points. Geometrically each (x)-axis intersection gives one real zero. A quadratic may have (0), (1), or (2) real zeroes.

Step 3

Exam Tip

ज्यामितीय अर्थ में हर (x)-अक्ष प्रतिच्छेद एक वास्तविक शून्यक देता है। द्विघात में वास्तविक शून्यक (0), (1), या (2) हो सकते हैं।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-11x+30) का ग्राफ खींचा जाए तो (x)-अक्ष पर कौन से बिंदु मिलेंगे?

If the graph of (p(x)=x-2-11x+30) is drawn, which points will lie on the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((5,0)) और ((6,0))((5,0)) and ((6,0))

Step 1

Concept

(x-2-11x+30=(x-5)(x-6)). So the graph meets the (x)-axis at (x=5) and (x=6).

Step 2

Why this answer is correct

The correct answer is A. ((5,0)) और ((6,0)) / ((5,0)) and ((6,0)). (x-2-11x+30=(x-5)(x-6)). So the graph meets the (x)-axis at (x=5) and (x=6).

Step 3

Exam Tip

(x-2-11x+30=(x-5)(x-6)) है। इसलिए (x=5) और (x=6) पर ग्राफ (x)-अक्ष से मिलता है।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि बहुपद (p(x)=5(x+1)(x-2)(x-4)) है तो ग्राफ (x)-अक्ष को कितने अलग बिंदुओं पर काटेगा?

If (p(x)=5(x+1)(x-2)(x-4)), at how many distinct points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. तीनThree

Step 1

Concept

The factors give zeroes (-1), (2), and (4). Three distinct zeroes give three distinct (x)-intercepts.

Step 2

Why this answer is correct

The correct answer is A. तीन / Three. The factors give zeroes (-1), (2), and (4). Three distinct zeroes give three distinct (x)-intercepts.

Step 3

Exam Tip

गुणनखंडों से शून्यक (-1), (2), और (4) हैं। तीन अलग शून्यक तीन अलग (x)-प्रतिच्छेद देते हैं।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-2x-8) है तो ग्राफ (x)-अक्ष को किन बिंदुओं पर मिलेगा?

If (p(x)=x-2-2x-8), at which points will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-2,0)) और ((4,0))((-2,0)) and ((4,0))

Step 1

Concept

(x-2-2x-8=(x-4)(x+2)). So the graph meets the (x)-axis at (x=4) and (x=-2).

Step 2

Why this answer is correct

The correct answer is A. ((-2,0)) और ((4,0)) / ((-2,0)) and ((4,0)). (x-2-2x-8=(x-4)(x+2)). So the graph meets the (x)-axis at (x=4) and (x=-2).

Step 3

Exam Tip

(x-2-2x-8=(x-4)(x+2)) है। अतः (x=4) और (x=-2) पर ग्राफ (x)-अक्ष से मिलेगा।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि बहुपद का ग्राफ (x)-अक्ष को चार अलग बिंदुओं पर काटता है तो डिग्री के बारे में कौन सा कथन सही है?

If the graph of a polynomial cuts the (x)-axis at four distinct points, which statement about its degree is correct?

Explanation opens after your attempt
Correct Answer

A. डिग्री कम से कम (4) होगीThe degree is at least (4)

Step 1

Concept

Four distinct real zeroes need degree at least four. The number of zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is A. डिग्री कम से कम (4) होगी / The degree is at least (4). Four distinct real zeroes need degree at least four. The number of zeroes cannot exceed the degree.

Step 3

Exam Tip

चार अलग वास्तविक शून्यक के लिए डिग्री कम से कम चार चाहिए। शून्यकों की संख्या डिग्री से अधिक नहीं होती।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि परवलय नीचे की ओर खुलता है और (x)-अक्ष को दो बिंदुओं पर काटता है तो वास्तविक शून्यकों की संख्या क्या होगी?

If a parabola opens downward and cuts the (x)-axis at two points, how many real zeroes will it have?

Explanation opens after your attempt
Correct Answer

A. दोTwo

Step 1

Concept

The opening direction alone does not decide the number of zeroes. Two intersections clearly give two real zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो / Two. The opening direction alone does not decide the number of zeroes. Two intersections clearly give two real zeroes.

Step 3

Exam Tip

खुलने की दिशा शून्यकों की संख्या अकेले तय नहीं करती। दो कटान स्पष्ट रूप से दो वास्तविक शून्यक देते हैं।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि द्विघात ग्राफ (x)-अक्ष को दो अलग बिंदुओं पर काटता है तो उसके वास्तविक शून्यक कैसे होंगे?

If a quadratic graph cuts the (x)-axis at two distinct points, what kind of real zeroes does it have?

Explanation opens after your attempt
Correct Answer

A. दो भिन्न वास्तविक शून्यकTwo distinct real zeroes

Step 1

Concept

Two separate intersections give two distinct real zeroes. Different (x)-intercepts mean different zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो भिन्न वास्तविक शून्यक / Two distinct real zeroes. Two separate intersections give two distinct real zeroes. Different (x)-intercepts mean different zeroes.

Step 3

Exam Tip

दो अलग कटान दो अलग वास्तविक शून्यक देते हैं। ग्राफ में अलग (x)-प्रतिच्छेद अलग शून्यक होते हैं।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-9) है तो इसका ग्राफ (x)-अक्ष को किन बिंदुओं पर काटेगा?

If (p(x)=x-2-9), at which points will its graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-3,0)) और ((3,0))((-3,0)) and ((3,0))

Step 1

Concept

Solving \(x^2-9=0\) gives \(x=\pm3\). Zeroes appear on the (x)-axis as ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)) और ((3,0)) / ((-3,0)) and ((3,0)). Solving \(x^2-9=0\) gives \(x=\pm3\). Zeroes appear on the (x)-axis as ((x,0)).

Step 3

Exam Tip

\(x^2-9=0\) से \(x=\pm3\) मिलता है। शून्यक हमेशा (x)-अक्ष पर ((x,0)) रूप में दिखते हैं।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=11(x+5)2(x-14)) है, तो ग्राफ कितने अलग बिंदुओं पर (x)-अक्ष से मिलेगा और कौन सा बिंदु स्पर्श होगा?

If (p(x)=11(x+5)2(x-14)), at how many distinct points will the graph meet the (x)-axis and which point will be a touching point?

Explanation opens after your attempt
Correct Answer

A. दो बिंदु, (x=-5) पर स्पर्शTwo points, touching at (x=-5)

Step 1

Concept

The zeroes are (-5) and (14), and ((x+5)2) causes touching at (-5). Tip: the outside (11) does not change the zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो बिंदु, (x=-5) पर स्पर्श / Two points, touching at (x=-5). The zeroes are (-5) and (14), and ((x+5)2) causes touching at (-5). Tip: the outside (11) does not change the zeroes.

Step 3

Exam Tip

शून्यक (-5) और (14) हैं तथा ((x+5)2) के कारण (-5) पर स्पर्श है। टिप: बाहरी (11) शून्यक नहीं बदलता।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि कोई बहुपद (x)-अक्ष को आठ अलग बिंदुओं पर काटता है, तो न्यूनतम संभावित घात क्या होगी?

If a polynomial cuts the (x)-axis at eight distinct points, what is the minimum possible degree?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

For eight distinct real zeroes, the degree must be at least (8). Tip: the number of distinct zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is C. (8). For eight distinct real zeroes, the degree must be at least (8). Tip: the number of distinct zeroes cannot exceed the degree.

Step 3

Exam Tip

आठ अलग वास्तविक शून्यकों के लिए घात कम से कम (8) होनी चाहिए। टिप: अलग शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

परवलय (x)-अक्ष को दो बिंदुओं पर काटता है और (y)-अक्ष को ((0,25)) पर काटता है। वास्तविक शून्यकों की संख्या क्या है?

A parabola cuts the (x)-axis at two points and cuts the (y)-axis at ((0,25)). What is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,25)) does not show a zero.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,25)) does not show a zero.

Step 3

Exam Tip

वास्तविक शून्यक (x)-अक्ष कटानों से गिने जाते हैं, (y)-अक्ष कटान से नहीं। टिप: ((0,25)) शून्यक नहीं बताता।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (x)-अक्ष से मिलने वाले बिंदु ((-11,0)), ((-11,0)), ((4,0)), ((4,0)) लिखे हैं, तो अलग वास्तविक शून्यक कितने हैं?

If the points meeting the (x)-axis are written as ((-11,0)), ((-11,0)), ((4,0)), ((4,0)), how many distinct real zeroes are there?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Repeated points give the same (x)-values, so the distinct zeroes are (-11) and (4). Tip: count the same (x)-value once.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Repeated points give the same (x)-values, so the distinct zeroes are (-11) and (4). Tip: count the same (x)-value once.

Step 3

Exam Tip

दोहराए बिंदु समान (x)-मान देते हैं, इसलिए अलग शून्यक (-11) और (4) हैं। टिप: समान (x)-मान को एक बार गिनें।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=9(x+4)2(x-12)) है, तो ग्राफ कितने अलग बिंदुओं पर (x)-अक्ष से मिलेगा और कौन सा बिंदु स्पर्श होगा?

If (p(x)=9(x+4)2(x-12)), at how many distinct points will the graph meet the (x)-axis and which point will be a touching point?

Explanation opens after your attempt
Correct Answer

A. दो बिंदु, (x=-4) पर स्पर्शTwo points, touching at (x=-4)

Step 1

Concept

The zeroes are (-4) and (12), and ((x+4)2) causes touching at (-4). Tip: the outside (9) does not change the zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो बिंदु, (x=-4) पर स्पर्श / Two points, touching at (x=-4). The zeroes are (-4) and (12), and ((x+4)2) causes touching at (-4). Tip: the outside (9) does not change the zeroes.

Step 3

Exam Tip

शून्यक (-4) और (12) हैं तथा ((x+4)2) के कारण (-4) पर स्पर्श है। टिप: बाहरी (9) शून्यक नहीं बदलता।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि कोई बहुपद (x)-अक्ष को सात अलग बिंदुओं पर काटता है, तो न्यूनतम संभावित घात क्या होगी?

If a polynomial cuts the (x)-axis at seven distinct points, what is the minimum possible degree?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

For seven distinct real zeroes, the degree must be at least (7). Tip: the number of distinct zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is C. (7). For seven distinct real zeroes, the degree must be at least (7). Tip: the number of distinct zeroes cannot exceed the degree.

Step 3

Exam Tip

सात अलग वास्तविक शून्यकों के लिए घात कम से कम (7) होनी चाहिए। टिप: अलग शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

परवलय (x)-अक्ष को दो बिंदुओं पर काटता है और (y)-अक्ष को ((0,-20)) पर काटता है। वास्तविक शून्यकों की संख्या क्या है?

A parabola cuts the (x)-axis at two points and cuts the (y)-axis at ((0,-20)). What is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,-20)) does not show a zero.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,-20)) does not show a zero.

Step 3

Exam Tip

वास्तविक शून्यक (x)-अक्ष कटानों से गिने जाते हैं, (y)-अक्ष कटान से नहीं। टिप: ((0,-20)) शून्यक नहीं बताता।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (x)-अक्ष से मिलने वाले बिंदु ((-7,0)), ((-7,0)), ((2,0)), ((2,0)) लिखे हैं, तो अलग वास्तविक शून्यक कितने हैं?

If the points meeting the (x)-axis are written as ((-7,0)), ((-7,0)), ((2,0)), ((2,0)), how many distinct real zeroes are there?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Repeated points give the same (x)-values, so the distinct zeroes are (-7) and (2). Tip: count the same (x)-value once.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Repeated points give the same (x)-values, so the distinct zeroes are (-7) and (2). Tip: count the same (x)-value once.

Step 3

Exam Tip

दोहराए बिंदु समान (x)-मान देते हैं, इसलिए अलग शून्यक (-7) और (2) हैं। टिप: समान (x)-मान को एक बार गिनें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=7(x+3)2(x-10)) है तो ग्राफ कितने अलग बिंदुओं पर (x)-अक्ष से मिलेगा और कौन सा बिंदु स्पर्श होगा?

If (p(x)=7(x+3)2(x-10)), at how many distinct points will the graph meet the (x)-axis and which point will be a touching point?

Explanation opens after your attempt
Correct Answer

A. दो बिंदु, (x=-3) पर स्पर्शTwo points, touching at (x=-3)

Step 1

Concept

The zeroes are (-3) and (10), and ((x+3)2) causes touching at (-3). Tip: the outside (7) does not change the zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो बिंदु, (x=-3) पर स्पर्श / Two points, touching at (x=-3). The zeroes are (-3) and (10), and ((x+3)2) causes touching at (-3). Tip: the outside (7) does not change the zeroes.

Step 3

Exam Tip

शून्यक (-3) और (10) हैं तथा ((x+3)2) के कारण (-3) पर स्पर्श है। टिप: बाहरी (7) शून्यक नहीं बदलता।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि कोई बहुपद (x)-अक्ष को छह अलग बिंदुओं पर काटता है तो न्यूनतम संभावित घात क्या होगी?

If a polynomial cuts the (x)-axis at six distinct points, what is the minimum possible degree?

Explanation opens after your attempt
Correct Answer

C. (6)

Step 1

Concept

For six distinct real zeroes, the degree must be at least (6). Tip: the number of distinct zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is C. (6). For six distinct real zeroes, the degree must be at least (6). Tip: the number of distinct zeroes cannot exceed the degree.

Step 3

Exam Tip

छह अलग वास्तविक शून्यकों के लिए घात कम से कम (6) होनी चाहिए। टिप: अलग शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि परवलय (x)-अक्ष को दो बिंदुओं पर काटता है और (y)-अक्ष को ((0,18)) पर काटता है तो वास्तविक शून्यकों की संख्या क्या है?

If a parabola cuts the (x)-axis at two points and cuts the (y)-axis at ((0,18)), what is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,18)) does not show a zero.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,18)) does not show a zero.

Step 3

Exam Tip

वास्तविक शून्यक (x)-अक्ष कटानों से गिने जाते हैं (y)-अक्ष कटान से नहीं। टिप: ((0,18)) शून्यक नहीं बताता।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (x)-अक्ष से मिलने वाले बिंदु ((-5,0)), ((-5,0)), ((4,0)) लिखे हैं तो अलग वास्तविक शून्यक कितने हैं?

If the points meeting the (x)-axis are written as ((-5,0)), ((-5,0)), ((4,0)), how many distinct real zeroes are there?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

((-5,0)) is repeated, so the distinct zeroes are (-5) and (4). Tip: count the same (x)-value once.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. ((-5,0)) is repeated, so the distinct zeroes are (-5) and (4). Tip: count the same (x)-value once.

Step 3

Exam Tip

((-5,0)) दोहराया गया है इसलिए अलग शून्यक (-5) और (4) हैं। टिप: समान (x)-मान को एक बार गिनें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-9x+k) का एक शून्यक (4) है तो दूसरा शून्यक और कटान बिंदु क्या होंगे?

If (p(x)=x-2-9x+k) has one zero (4), what will be the other zero and intersection points?

Explanation opens after your attempt
Correct Answer

A. दूसरा (5), कटान ((4,0)), ((5,0))Other (5), intersections ((4,0)), ((5,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (9), so the other zero is (5). Tip: quickly convert a zero to ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (5), कटान ((4,0)), ((5,0)) / Other (5), intersections ((4,0)), ((5,0)). In the quadratic, the sum of zeroes is (9), so the other zero is (5). Tip: quickly convert a zero to ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (9) है इसलिए दूसरा शून्यक (5) है। टिप: शून्यक को तुरंत ((x,0)) में बदलें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ के शून्यक (-6), (2), (9) हैं तो (x)-अक्ष कटान बिंदुओं का सही समूह कौन सा है?

If the zeroes of a graph are (-6), (2), (9), which is the correct set of (x)-axis intersection points?

Explanation opens after your attempt
Correct Answer

B. ((-6,0)), ((2,0)), ((9,0))

Step 1

Concept

A zero (r) gives the point ((r,0)). Tip: write the zero as the first coordinate.

Step 2

Why this answer is correct

The correct answer is B. ((-6,0)), ((2,0)), ((9,0)). A zero (r) gives the point ((r,0)). Tip: write the zero as the first coordinate.

Step 3

Exam Tip

शून्यक (r) का बिंदु ((r,0)) होता है। टिप: शून्यक को पहले निर्देशांक में लिखें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-3-25x) है तो ग्राफ (x)-अक्ष को कितने अलग बिंदुओं पर काटेगा?

If (p(x)=x-3-25x), at how many distinct points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. तीनThree

Step 1

Concept

(x-3-25x=x(x-5)(x+5)), so there are three distinct zeroes. Tip: first take out the common factor.

Step 2

Why this answer is correct

The correct answer is C. तीन / Three. (x-3-25x=x(x-5)(x+5)), so there are three distinct zeroes. Tip: first take out the common factor.

Step 3

Exam Tip

(x-3-25x=x(x-5)(x+5)) है इसलिए तीन अलग शून्यक हैं। टिप: पहले सामान्य गुणनखंड निकालें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=5(x+2)2(x-7)) है, तो ग्राफ कितने अलग बिंदुओं पर (x)-अक्ष से मिलेगा और कौन सा बिंदु स्पर्श होगा?

If (p(x)=5(x+2)2(x-7)), at how many distinct points will the graph meet the (x)-axis and which point will be a touching point?

Explanation opens after your attempt
Correct Answer

A. दो बिंदु, (x=-2) पर स्पर्शTwo points, touching at (x=-2)

Step 1

Concept

The zeroes are (-2) and (7), and ((x+2)2) causes touching at (-2). Tip: the outside (5) does not change the zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो बिंदु, (x=-2) पर स्पर्श / Two points, touching at (x=-2). The zeroes are (-2) and (7), and ((x+2)2) causes touching at (-2). Tip: the outside (5) does not change the zeroes.

Step 3

Exam Tip

शून्यक (-2) और (7) हैं, तथा ((x+2)2) के कारण (-2) पर स्पर्श है। टिप: बाहरी (5) शून्यक नहीं बदलता।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि कोई बहुपद (x)-अक्ष को चार अलग बिंदुओं पर काटता है, तो न्यूनतम संभावित घात क्या होगी?

If a polynomial cuts the (x)-axis at four distinct points, what is the minimum possible degree?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

For four distinct real zeroes, the degree must be at least (4). Tip: the number of distinct zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is C. (4). For four distinct real zeroes, the degree must be at least (4). Tip: the number of distinct zeroes cannot exceed the degree.

Step 3

Exam Tip

चार अलग वास्तविक शून्यकों के लिए घात कम से कम (4) होनी चाहिए। टिप: अलग शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि परवलय (x)-अक्ष को दो बिंदुओं पर काटता है और (y)-अक्ष को ((0,-15)) पर काटता है, तो वास्तविक शून्यकों की संख्या क्या है?

If a parabola cuts the (x)-axis at two points and cuts the (y)-axis at ((0,-15)), what is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,-15)) does not show a zero.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,-15)) does not show a zero.

Step 3

Exam Tip

वास्तविक शून्यक (x)-अक्ष कटानों से गिने जाते हैं, (y)-अक्ष कटान से नहीं। टिप: ((0,-15)) शून्यक नहीं बताता।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (x)-अक्ष से मिलने वाले बिंदु ((2,0)), ((2,0)), ((9,0)) लिखे हैं, तो अलग वास्तविक शून्यक कितने हैं?

If the points meeting the (x)-axis are written as ((2,0)), ((2,0)), ((9,0)), how many distinct real zeroes are there?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

((2,0)) is repeated, so the distinct zeroes are (2) and (9). Tip: count the same (x)-value once.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. ((2,0)) is repeated, so the distinct zeroes are (2) and (9). Tip: count the same (x)-value once.

Step 3

Exam Tip

((2,0)) दोहराया गया है, इसलिए अलग शून्यक (2) और (9) हैं। टिप: समान (x)-मान को एक बार गिनें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2-7x+k) का एक शून्यक (3) है, तो दूसरा शून्यक और कटान बिंदु क्या होंगे?

If (p(x)=x-2-7x+k) has one zero (3), what will be the other zero and intersection points?

Explanation opens after your attempt
Correct Answer

A. दूसरा (4), कटान ((3,0)), ((4,0))Other (4), intersections ((3,0)), ((4,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (7), so the other zero is (4). Tip: quickly convert a zero to ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (4), कटान ((3,0)), ((4,0)) / Other (4), intersections ((3,0)), ((4,0)). In the quadratic, the sum of zeroes is (7), so the other zero is (4). Tip: quickly convert a zero to ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (7) है, इसलिए दूसरा शून्यक (4) है। टिप: शून्यक को तुरंत ((x,0)) में बदलें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ के शून्यक (-4), (1), (8) हैं, तो (x)-अक्ष कटान बिंदुओं का सही समूह कौन सा है?

If the zeroes of a graph are (-4), (1), (8), which is the correct set of (x)-axis intersection points?

Explanation opens after your attempt
Correct Answer

B. ((-4,0)), ((1,0)), ((8,0))

Step 1

Concept

A zero (r) gives the point ((r,0)). Tip: write the zero as the first coordinate.

Step 2

Why this answer is correct

The correct answer is B. ((-4,0)), ((1,0)), ((8,0)). A zero (r) gives the point ((r,0)). Tip: write the zero as the first coordinate.

Step 3

Exam Tip

शून्यक (r) का बिंदु ((r,0)) होता है। टिप: शून्यक को पहले निर्देशांक में लिखें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-3-16x) है, तो ग्राफ (x)-अक्ष को कितने अलग बिंदुओं पर काटेगा?

If (p(x)=x-3-16x), at how many distinct points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. तीनThree

Step 1

Concept

(x-3-16x=x(x-4)(x+4)), so there are three distinct zeroes. Tip: first take out the common factor.

Step 2

Why this answer is correct

The correct answer is C. तीन / Three. (x-3-16x=x(x-4)(x+4)), so there are three distinct zeroes. Tip: first take out the common factor.

Step 3

Exam Tip

(x-3-16x=x(x-4)(x+4)) है, इसलिए तीन अलग शून्यक हैं। टिप: पहले सामान्य गुणनखंड निकालें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=3(x-2)2(x+1)) है, तो ग्राफ (x)-अक्ष से कितने अलग बिंदुओं पर मिलेगा और कौन सा बिंदु स्पर्श होगा?

If (p(x)=3(x-2)2(x+1)), at how many distinct points will the graph meet the (x)-axis and which point will be a touching point?

Explanation opens after your attempt
Correct Answer

A. दो बिंदु, (x=2) पर स्पर्शTwo points, touching at (x=2)

Step 1

Concept

The zeroes are (2) and (-1), and ((x-2)2) causes touching at (x=2). Tip: the outside (3) does not change the zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो बिंदु, (x=2) पर स्पर्श / Two points, touching at (x=2). The zeroes are (2) and (-1), and ((x-2)2) causes touching at (x=2). Tip: the outside (3) does not change the zeroes.

Step 3

Exam Tip

शून्यक (2) और (-1) हैं, तथा ((x-2)2) के कारण (x=2) पर स्पर्श है। टिप: बाहरी (3) शून्यक नहीं बदलता।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि किसी बहुपद का ग्राफ (x)-अक्ष को तीन अलग बिंदुओं पर काटता है, तो बहुपद की न्यूनतम संभावित घात क्या हो सकती है?

If a polynomial graph cuts the (x)-axis at three distinct points, what can be the minimum possible degree of the polynomial?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

For three distinct real zeroes, the degree must be at least (3). Tip: the number of distinct zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is C. (3). For three distinct real zeroes, the degree must be at least (3). Tip: the number of distinct zeroes cannot exceed the degree.

Step 3

Exam Tip

तीन अलग वास्तविक शून्यकों के लिए घात कम से कम (3) होनी चाहिए। टिप: अलग शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि किसी परवलय का ग्राफ (x)-अक्ष को दो बिंदुओं पर काटता है और (y)-अक्ष को ((0,12)) पर काटता है, तो वास्तविक शून्यकों की संख्या क्या है?

If a parabola cuts the (x)-axis at two points and cuts the (y)-axis at ((0,12)), what is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,12)) is not a zero.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,12)) is not a zero.

Step 3

Exam Tip

वास्तविक शून्यक (x)-अक्ष कटानों से गिने जाते हैं, (y)-अक्ष कटान से नहीं। टिप: ((0,12)) शून्यक नहीं है।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि किसी बहुपद के ग्राफ में (x)-अक्ष से मिलने वाले बिंदु ((1,0)), ((1,0)), ((4,0)) लिखे हैं, तो अलग वास्तविक शून्यक कितने हैं?

If the points meeting the (x)-axis on a polynomial graph are written as ((1,0)), ((1,0)), ((4,0)), how many distinct real zeroes are there?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

((1,0)) is repeated, so the distinct zeroes are (1) and (4). Tip: count the same (x)-value once.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. ((1,0)) is repeated, so the distinct zeroes are (1) and (4). Tip: count the same (x)-value once.

Step 3

Exam Tip

((1,0)) दोहराया गया है, इसलिए अलग शून्यक (1) और (4) हैं। टिप: समान (x)-मान को एक बार गिनें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि किसी ग्राफ पर शून्यक (-2), (3), (7) हैं, तो (x)-अक्ष कटान बिंदुओं का सही समूह कौन सा है?

If a graph has zeroes (-2), (3), (7), which is the correct set of (x)-axis intersection points?

Explanation opens after your attempt
Correct Answer

B. ((-2,0)), ((3,0)), ((7,0))

Step 1

Concept

A zero (a) gives the intersection point ((a,0)). Tip: write the zero as the first coordinate.

Step 2

Why this answer is correct

The correct answer is B. ((-2,0)), ((3,0)), ((7,0)). A zero (a) gives the intersection point ((a,0)). Tip: write the zero as the first coordinate.

Step 3

Exam Tip

शून्यक (a) का कटान बिंदु ((a,0)) होता है। टिप: शून्यक को पहले निर्देशांक में लिखें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि किसी घन बहुपद का ग्राफ (x)-अक्ष को दो अलग बिंदुओं पर छूता और काटता है, तो अलग वास्तविक शून्यक कितने होंगे?

If the graph of a cubic polynomial touches or crosses the (x)-axis at two distinct points, how many distinct real zeroes will it have?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Distinct zeroes are counted from distinct meeting points with the (x)-axis. Tip: degree gives the maximum, but the actual count is read from the graph.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Distinct zeroes are counted from distinct meeting points with the (x)-axis. Tip: degree gives the maximum, but the actual count is read from the graph.

Step 3

Exam Tip

अलग शून्यक अलग (x)-अक्ष मिलने वाले बिंदुओं की संख्या से मिलते हैं। टिप: घात से अधिकतम संख्या मिलती है, वास्तविक गिनती ग्राफ से पढ़ें।

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Question Hard Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=x-3-9x) है, तो ग्राफ (x)-अक्ष को कितने अलग बिंदुओं पर काट सकता है?

If (p(x)=x-3-9x), at how many distinct points can the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. तीनThree

Step 1

Concept

(x-3-9x=x(x-3)(x+3)), so there are three distinct zeroes. Tip: take the common factor and use difference of squares.

Step 2

Why this answer is correct

The correct answer is C. तीन / Three. (x-3-9x=x(x-3)(x+3)), so there are three distinct zeroes. Tip: take the common factor and use difference of squares.

Step 3

Exam Tip

(x-3-9x=x(x-3)(x+3)), इसलिए तीन अलग शून्यक हैं। टिप: सामान्य गुणनखंड निकालकर वर्गों का अंतर देखें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=(x+3)(x-1)2) है तो ग्राफ (x)-अक्ष से कितने अलग बिंदुओं पर मिलेगा?

If (p(x)=(x+3)(x-1)2), at how many distinct points will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

The zeroes are (-3) and (1), so there are two distinct meeting points. Tip: count the repeated zero (1) only once for distinct points.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. The zeroes are (-3) and (1), so there are two distinct meeting points. Tip: count the repeated zero (1) only once for distinct points.

Step 3

Exam Tip

शून्यक (-3) और (1) हैं, इसलिए दो अलग बिंदु मिलेंगे। टिप: दोहराए हुए शून्यक (1) को अलग गिनती में एक बार गिनें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=(x-2)(x-5)(x-8)) है तो ग्राफ (x)-अक्ष को कितने अलग बिंदुओं पर काटेगा?

If (p(x)=(x-2)(x-5)(x-8)), at how many distinct points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. तीनThree

Step 1

Concept

Three distinct linear factors give three distinct zeroes (2), (5), (8). Tip: each distinct factor can give one intersection.

Step 2

Why this answer is correct

The correct answer is C. तीन / Three. Three distinct linear factors give three distinct zeroes (2), (5), (8). Tip: each distinct factor can give one intersection.

Step 3

Exam Tip

तीन अलग रैखिक कारक तीन अलग शून्यक (2), (5), (8) देते हैं। टिप: हर अलग कारक एक कटान दे सकता है।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-49) है तो ग्राफ (x)-अक्ष को किन बिंदुओं पर काटेगा?

If (p(x)=x-2-49), at which points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((7,0)) और ((-7,0))((7,0)) and ((-7,0))

Step 1

Concept

Solving \(x^2-49=0\) gives \(x=\pm7\). Tip: recognize the difference of squares.

Step 2

Why this answer is correct

The correct answer is A. ((7,0)) और ((-7,0)) / ((7,0)) and ((-7,0)). Solving \(x^2-49=0\) gives \(x=\pm7\). Tip: recognize the difference of squares.

Step 3

Exam Tip

\(x^2-49=0\) से \(x=\pm7\) मिलता है। टिप: वर्गों के अंतर को पहचानें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी ग्राफ के बिंदु ((3,0)) और ((3,0)) एक ही स्पर्श को दो बार दिखा रहे हैं तो अलग शून्यक कितने हैं?

If the points ((3,0)) and ((3,0)) show the same touch twice on a graph, how many distinct zeroes are there?

Explanation opens after your attempt
Correct Answer

A. एकOne

Step 1

Concept

Both have the same (x)-value (3), so there is one distinct zero. Tip: count a repeated value once for distinct count.

Step 2

Why this answer is correct

The correct answer is A. एक / One. Both have the same (x)-value (3), so there is one distinct zero. Tip: count a repeated value once for distinct count.

Step 3

Exam Tip

दोनों में (x)-मान समान (3) है इसलिए अलग शून्यक एक है। टिप: दोहराए मान को अलग गिनती में एक बार लें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी आलेख में ((a,0)) और ((b,0)) कटान बिंदु हैं और (a<b), तो छोटे शून्यक का मान क्या है?

If ((a,0)) and ((b,0)) are intersection points of a graph and (a<b), what is the smaller zero?

Explanation opens after your attempt
Correct Answer

A. (a)

Step 1

Concept

The zeroes are (a) and (b), and (a<b). Tip: even with symbols the first coordinate is the zero.

Step 2

Why this answer is correct

The correct answer is A. (a). The zeroes are (a) and (b), and (a<b). Tip: even with symbols the first coordinate is the zero.

Step 3

Exam Tip

शून्यक (a) और (b) हैं और (a<b) है। टिप: प्रतीकों में भी पहला निर्देशांक शून्यक होता है।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी बहुपद का ग्राफ (x)-अक्ष को पाँच अलग बिंदुओं पर काटता है तो बहुपद की न्यूनतम घात क्या हो सकती है?

If a polynomial graph cuts the (x)-axis at five distinct points, what can be the minimum degree of the polynomial?

Explanation opens after your attempt
Correct Answer

D. (5)

Step 1

Concept

For five distinct real zeroes the degree must be at least (5). Tip: the number of zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is D. (5). For five distinct real zeroes the degree must be at least (5). Tip: the number of zeroes cannot exceed the degree.

Step 3

Exam Tip

पाँच अलग वास्तविक शून्यकों के लिए घात कम से कम (5) होनी चाहिए। टिप: शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ (x)-अक्ष को ((-2,0)) और ((10,0)) पर काटता है तो इन कटान बिंदुओं का मध्यबिंदु क्या है?

If a graph cuts the (x)-axis at ((-2,0)) and ((10,0)), what is the midpoint of these intersection points?

Explanation opens after your attempt
Correct Answer

A. ((4,0))

Step 1

Concept

The (x)-value of the midpoint is \(\frac{-2+10}{2}=4\). Tip: on the (x)-axis both points keep (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((4,0)). The (x)-value of the midpoint is \(\frac{-2+10}{2}=4\). Tip: on the (x)-axis both points keep (y=0).

Step 3

Exam Tip

मध्यबिंदु का (x)-मान \(\frac{-2+10}{2}=4\) है। टिप: (x)-अक्ष पर दोनों बिंदुओं का (y)-मान (0) रहता है।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=(x+2)(x-7)) है तो ग्राफ (x)-अक्ष से किन बिंदुओं पर मिलेगा?

If (p(x)=(x+2)(x-7)), at which points will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

B. ((-2,0)) और ((7,0))((-2,0)) and ((7,0))

Step 1

Concept

Setting the factors to zero gives (x=-2) and (x=7). Tip: convert each zero into the point ((x,0)).

Step 2

Why this answer is correct

The correct answer is B. ((-2,0)) और ((7,0)) / ((-2,0)) and ((7,0)). Setting the factors to zero gives (x=-2) and (x=7). Tip: convert each zero into the point ((x,0)).

Step 3

Exam Tip

कारक शून्य करने पर (x=-2) और (x=7) मिलते हैं। टिप: शून्यक को ((x,0)) बिंदु में बदलें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी बहुपद के आलेख पर बिंदु ((-4,0)), ((0,3)), ((2,0)) और ((5,-1)) हैं तो वास्तविक शून्यक कौन से हैं?

If the points ((-4,0)), ((0,3)), ((2,0)) and ((5,-1)) lie on a polynomial graph, which are the real zeroes?

Explanation opens after your attempt
Correct Answer

A. (-4) और (2)(-4) and (2)

Step 1

Concept

Zeroes occur where (y=0). Tip: choose only points lying on the (x)-axis.

Step 2

Why this answer is correct

The correct answer is A. (-4) और (2) / (-4) and (2). Zeroes occur where (y=0). Tip: choose only points lying on the (x)-axis.

Step 3

Exam Tip

जहाँ (y=0) है वहीं शून्यक मिलते हैं। टिप: केवल (x)-अक्ष पर पड़े बिंदु चुनें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=(x-1)(x-4)(x+2)) है तो ग्राफ (x)-अक्ष को कितने अलग बिंदुओं पर काटेगा?

If (p(x)=(x-1)(x-4)(x+2)), at how many distinct points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. तीनThree

Step 1

Concept

The three different factors give three distinct zeroes (1), (4), (-2). Tip: each linear factor gives a possible intersection.

Step 2

Why this answer is correct

The correct answer is C. तीन / Three. The three different factors give three distinct zeroes (1), (4), (-2). Tip: each linear factor gives a possible intersection.

Step 3

Exam Tip

तीन अलग कारक तीन अलग शून्यक (1), (4), (-2) देते हैं। टिप: हर रैखिक कारक एक संभावित कटान देता है।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(-2)) और (p(3)) दोनों (0) हैं, तो ग्राफ पर कौन से बिंदु अवश्य होंगे?

If (p(-2)) and (p(3)) are both (0), which points must be on the graph?

Explanation opens after your attempt
Correct Answer

A. ((-2,0)) और ((3,0))((-2,0)) and ((3,0))

Step 1

Concept

When (p(a)=0), the point is ((a,0)). Tip: place the function value as the second coordinate.

Step 2

Why this answer is correct

The correct answer is A. ((-2,0)) और ((3,0)) / ((-2,0)) and ((3,0)). When (p(a)=0), the point is ((a,0)). Tip: place the function value as the second coordinate.

Step 3

Exam Tip

(p(a)=0) होने पर बिंदु ((a,0)) बनता है। टिप: फलन मान को दूसरे निर्देशांक में रखें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि किसी बहुपद का आलेख (x)-अक्ष को चार अलग बिंदुओं पर काटता है तो उसका न्यूनतम संभावित घात क्या हो सकता है?

If a polynomial graph cuts the (x)-axis at four distinct points, what can be its minimum possible degree?

Explanation opens after your attempt
Correct Answer

D. (4)

Step 1

Concept

For four distinct real zeroes, the degree must be at least (4). Tip: the number of zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is D. (4). For four distinct real zeroes, the degree must be at least (4). Tip: the number of zeroes cannot exceed the degree.

Step 3

Exam Tip

चार अलग वास्तविक शून्यकों के लिए घात कम से कम (4) होना चाहिए। टिप: शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ ((0,4)), ((-3,0)), ((1,7)), ((8,0)) से गुजरता है तो कौन से बिंदु शून्यक दिखाते हैं?

If a graph passes through ((0,4)), ((-3,0)), ((1,7)), ((8,0)), which points show zeroes?

Explanation opens after your attempt
Correct Answer

B. ((-3,0)) और ((8,0))((-3,0)) and ((8,0))

Step 1

Concept

Points showing zeroes have (y=0). Tip: check the second coordinate when choosing points.

Step 2

Why this answer is correct

The correct answer is B. ((-3,0)) और ((8,0)) / ((-3,0)) and ((8,0)). Points showing zeroes have (y=0). Tip: check the second coordinate when choosing points.

Step 3

Exam Tip

शून्यक दिखाने वाले बिंदुओं में (y=0) होता है। टिप: बिंदु चुनते समय दूसरा निर्देशांक देखें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=(x+7)(x-1)) है तो आलेख (x)-अक्ष को किन बिंदुओं पर मिलेगा?

If (p(x)=(x+7)(x-1)), at which points will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. ((-7,0)) और ((1,0))((-7,0)) and ((1,0))

Step 1

Concept

Setting the factors equal to zero gives (x=-7) and (x=1). Tip: set each factor separately to (0).

Step 2

Why this answer is correct

The correct answer is C. ((-7,0)) और ((1,0)) / ((-7,0)) and ((1,0)). Setting the factors equal to zero gives (x=-7) and (x=1). Tip: set each factor separately to (0).

Step 3

Exam Tip

कारक शून्य करने पर (x=-7) और (x=1) मिलते हैं। टिप: हर कारक को अलग से (0) रखें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि ग्राफ पर ((-2,0)) और ((6,0)) शून्यक बिंदु हैं, तो उनके बीच (x)-अक्ष पर कितनी इकाई की दूरी है?

If ((-2,0)) and ((6,0)) are zero points on a graph, how many units apart are they on the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

The distance is (6-(-2)=8) units. Tip: distance on the (x)-axis is the absolute difference of (x)-values.

Step 2

Why this answer is correct

The correct answer is C. (8). The distance is (6-(-2)=8) units. Tip: distance on the (x)-axis is the absolute difference of (x)-values.

Step 3

Exam Tip

दूरी (6-(-2)=8) इकाई है। टिप: (x)-अक्ष पर दूरी (x)-मानों के अंतर का परिमाण है।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

किसी बहुपद के लिए (p(1)=0), (p(2)=0), (p(3)=0) है। यदि ये तीनों अलग शून्यक हैं, तो ग्राफ (x)-अक्ष से कितने अलग बिंदुओं पर मिलेगा?

For a polynomial (p(1)=0), (p(2)=0), (p(3)=0). If these are three distinct zeroes, at how many distinct points will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. तीनThree

Step 1

Concept

Three distinct (x)-values give three distinct (x)-axis points. Tip: distinct zeroes make distinct intersection points.

Step 2

Why this answer is correct

The correct answer is C. तीन / Three. Three distinct (x)-values give three distinct (x)-axis points. Tip: distinct zeroes make distinct intersection points.

Step 3

Exam Tip

तीन अलग (x)-मान तीन अलग (x)-अक्ष बिंदु देते हैं। टिप: अलग शून्यक अलग कटान बिंदु बनाते हैं।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि शून्यक (-2) और (6) हैं, तो (x)-अक्ष कटान बिंदुओं का मध्यबिंदु कौन सा है?

If the zeroes are (-2) and (6), what is the midpoint of the (x)-axis intersection points?

Explanation opens after your attempt
Correct Answer

A. ((2,0))

Step 1

Concept

The midpoint of ((-2,0)) and ((6,0)) is ((2,0)). Tip: when (y)-values are equal, average the (x)-values.

Step 2

Why this answer is correct

The correct answer is A. ((2,0)). The midpoint of ((-2,0)) and ((6,0)) is ((2,0)). Tip: when (y)-values are equal, average the (x)-values.

Step 3

Exam Tip

बिंदु ((-2,0)) और ((6,0)) का मध्यबिंदु ((2,0)) है। टिप: समान (y)-मान हो तो केवल (x)-मानों का औसत लें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

किसी बहुपद के ग्राफ पर ((2,0)), ((3,4)), ((4,0)) और ((5,-1)) बिंदु हैं। (p(3)) और (p(5)) को शून्यक क्यों नहीं कहा जाएगा?

The points ((2,0)), ((3,4)), ((4,0)) and ((5,-1)) lie on a polynomial graph. Why will (3) and (5) not be called zeroes?

Explanation opens after your attempt
Correct Answer

B. क्योंकि उनके (y)-मान (0) नहीं हैंBecause their (y)-values are not (0)

Step 1

Concept

At (3) and (5), (p(x)) is (4) and (-1). Tip: for a zero, the function value must be exactly (0).

Step 2

Why this answer is correct

The correct answer is B. क्योंकि उनके (y)-मान (0) नहीं हैं / Because their (y)-values are not (0). At (3) and (5), (p(x)) is (4) and (-1). Tip: for a zero, the function value must be exactly (0).

Step 3

Exam Tip

(3) और (5) पर (p(x)) क्रमशः (4) और (-1) है। टिप: शून्यक के लिए फलन मान बिल्कुल (0) होना चाहिए।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(-3)=0), (p(0)=5) और (p(4)=0), तो ग्राफ (x)-अक्ष को किन बिंदुओं पर काटेगा?

If (p(-3)=0), (p(0)=5) and (p(4)=0), at which points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

B. ((-3,0)) और ((4,0))((-3,0)) and ((4,0))

Step 1

Concept

Where (p(x)=0), there is an (x)-axis intersection. Tip: (p(0)=5) does not give a zero.

Step 2

Why this answer is correct

The correct answer is B. ((-3,0)) और ((4,0)) / ((-3,0)) and ((4,0)). Where (p(x)=0), there is an (x)-axis intersection. Tip: (p(0)=5) does not give a zero.

Step 3

Exam Tip

जहाँ (p(x)=0) है वहीं (x)-अक्ष कटान है। टिप: (p(0)=5) शून्यक नहीं देता।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

द्विघात बहुपद का ग्राफ नीचे की ओर खुलता है और (x)-अक्ष को दो बिंदुओं पर काटता है। वास्तविक शून्यकों की संख्या क्या है?

The graph of a quadratic polynomial opens downward and cuts the (x)-axis at two points. What is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

C. दोTwo

Step 1

Concept

The opening direction does not change the count, there are two intersections. Tip: decide zeroes by (x)-axis intersections.

Step 2

Why this answer is correct

The correct answer is C. दो / Two. The opening direction does not change the count, there are two intersections. Tip: decide zeroes by (x)-axis intersections.

Step 3

Exam Tip

दिशा ऊपर या नीचे होने से संख्या नहीं बदलती, कटान दो हैं। टिप: शून्यकों की संख्या (x)-अक्ष कटान से तय करें।

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Question Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(a)=0) और (p(b)=0), जहाँ \(a\neq b\), तो आलेख (x)-अक्ष को किन बिंदुओं पर काटेगा?

If (p(a)=0) and (p(b)=0), where \(a\neq b\), at which points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. ((a,0)) और ((b,0))((a,0)) and ((b,0))

Step 1

Concept

The value (p(a)=0) gives the point ((a,0)). Tip: (p(x)) is the (y)-coordinate on the graph.

Step 2

Why this answer is correct

The correct answer is C. ((a,0)) और ((b,0)) / ((a,0)) and ((b,0)). The value (p(a)=0) gives the point ((a,0)). Tip: (p(x)) is the (y)-coordinate on the graph.

Step 3

Exam Tip

(p(a)=0) का बिंदु ((a,0)) होता है। टिप: (p(x)) ग्राफ में (y)-निर्देशांक होता है।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (x)-अक्ष को काटने वाले बिंदु ((-7,0)) और ((-3,0)) हैं तो बड़ा शून्यक कौन सा है?

If the points cutting the (x)-axis are ((-7,0)) and ((-3,0)) then which is the greater zero?

Explanation opens after your attempt
Correct Answer

A. (-3)

Step 1

Concept

The zeroes are (-7) and (-3) and (-3) is greater. Tip: the number to the right on the number line is greater.

Step 2

Why this answer is correct

The correct answer is A. (-3). The zeroes are (-7) and (-3) and (-3) is greater. Tip: the number to the right on the number line is greater.

Step 3

Exam Tip

शून्यक (-7) और (-3) हैं और (-3) बड़ा है। टिप: संख्या रेखा पर दाईं ओर वाली संख्या बड़ी होती है।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

किसी घन बहुपद का आलेख (x)-अक्ष को तीन अलग-अलग बिंदुओं पर काटता है। वास्तविक शून्यकों की संख्या क्या है?

The graph of a cubic polynomial cuts the (x)-axis at three distinct points. What is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

A. तीनThree

Step 1

Concept

Three intersection points show three real zeroes. Tip: count each distinct (x)-axis intersection.

Step 2

Why this answer is correct

The correct answer is A. तीन / Three. Three intersection points show three real zeroes. Tip: count each distinct (x)-axis intersection.

Step 3

Exam Tip

तीन कटान बिंदु तीन वास्तविक शून्यक बताते हैं। टिप: प्रत्येक अलग (x)-अक्ष कटान को गिनें।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

आलेख में बिंदु ((0,0)) और ((3,0)) (x)-अक्ष पर हैं। संभावित शून्यक कौन से हैं?

In a graph the points ((0,0)) and ((3,0)) lie on the (x)-axis. What are the possible zeroes?

Explanation opens after your attempt
Correct Answer

A. (0) और (3)(0) and (3)

Step 1

Concept

The (x)-coordinates of both points give zeroes. Tip: the origin can also give a zero.

Step 2

Why this answer is correct

The correct answer is A. (0) और (3) / (0) and (3). The (x)-coordinates of both points give zeroes. Tip: the origin can also give a zero.

Step 3

Exam Tip

दोनों बिंदुओं के (x)-निर्देशांक शून्यक देते हैं। टिप: मूल बिंदु भी शून्यक दे सकता है।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी द्विघात बहुपद के वास्तविक शून्यक (1) और (4) हैं तो उसका आलेख (x)-अक्ष को किन बिंदुओं पर काटेगा?

If a quadratic polynomial has real zeroes (1) and (4) then at which points will its graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((1,0)) और ((4,0))((1,0)) and ((4,0))

Step 1

Concept

A zero (a) gives the intersection point ((a,0)). Tip: do not make the zero the (y)-coordinate.

Step 2

Why this answer is correct

The correct answer is A. ((1,0)) और ((4,0)) / ((1,0)) and ((4,0)). A zero (a) gives the intersection point ((a,0)). Tip: do not make the zero the (y)-coordinate.

Step 3

Exam Tip

शून्यक (a) से कटान बिंदु ((a,0)) बनता है। टिप: शून्यक को (y)-निर्देशांक न बनाएं।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि द्विघात बहुपद का आलेख (x)-अक्ष को दो अलग-अलग बिंदुओं पर काटता है तो वास्तविक शून्यकों की संख्या क्या होगी?

If the graph of a quadratic polynomial cuts the (x)-axis at two distinct points then what is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

A. दोTwo

Step 1

Concept

Two intersection points show two real zeroes. Tip: a parabola can cut the (x)-axis at most twice.

Step 2

Why this answer is correct

The correct answer is A. दो / Two. Two intersection points show two real zeroes. Tip: a parabola can cut the (x)-axis at most twice.

Step 3

Exam Tip

दो कटान बिंदु दो वास्तविक शून्यक बताते हैं। टिप: परवलय (x)-अक्ष को अधिकतम दो बार काट सकता है।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि बहुपद के ग्राफ में (x)-अक्ष से मिलने वाले बिंदु ((-9,0)), ((-1,0)), और ((3,0)) हैं, तो वास्तविक शून्यक कितने हैं?

If the points where a polynomial graph meets the (x)-axis are ((-9,0)), ((-1,0)), and ((3,0)), how many real zeroes are there?

Explanation opens after your attempt
Correct Answer

A. तीनThree

Step 1

Concept

Three distinct (x)-axis points show three distinct real zeroes. Their (x)-coordinates are the zeroes.

Step 2

Why this answer is correct

The correct answer is A. तीन / Three. Three distinct (x)-axis points show three distinct real zeroes. Their (x)-coordinates are the zeroes.

Step 3

Exam Tip

तीन अलग (x)-अक्ष बिंदु तीन अलग वास्तविक शून्यक बताते हैं। उनके (x)-निर्देशांक ही शून्यक हैं।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि किसी ग्राफ के शून्यक (-1), (3), और (8) हैं, तो ग्राफ (x)-अक्ष को किन बिंदुओं पर काटेगा?

If the zeroes of a graph are (-1), (3), and (8), at which points will it cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-1,0)), ((3,0)), ((8,0))

Step 1

Concept

Use the zeroes as (x)-coordinates and take (y=0). So the intersection points are ((-1,0)), ((3,0)), and ((8,0)).

Step 2

Why this answer is correct

The correct answer is A. ((-1,0)), ((3,0)), ((8,0)). Use the zeroes as (x)-coordinates and take (y=0). So the intersection points are ((-1,0)), ((3,0)), and ((8,0)).

Step 3

Exam Tip

शून्यकों को (x)-निर्देशांक बनाकर (y=0) लिया जाता है। इसलिए कटाव बिंदु ((-1,0)), ((3,0)), और ((8,0)) होंगे।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

किसी बहुपद के ग्राफ में (x)-अक्ष से अलग-अलग मिलने वाले बिंदुओं की संख्या क्या बताती है?

What does the number of distinct meeting points with the (x)-axis tell in a polynomial graph?

Explanation opens after your attempt
Correct Answer

A. वास्तविक शून्यकों की संख्याNumber of real zeroes

Step 1

Concept

The number of distinct points where the graph meets the (x)-axis gives the number of real zeroes. This is the main graphical rule.

Step 2

Why this answer is correct

The correct answer is A. वास्तविक शून्यकों की संख्या / Number of real zeroes. The number of distinct points where the graph meets the (x)-axis gives the number of real zeroes. This is the main graphical rule.

Step 3

Exam Tip

ग्राफ जितनी बार अलग-अलग (x)-अक्ष से मिलता है, उतने वास्तविक शून्यक होते हैं। यह ग्राफीय अर्थ का मुख्य नियम है।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ (x)-अक्ष को तीन अलग-अलग बिंदुओं पर काटता है, तो वास्तविक शून्यकों की संख्या क्या होगी?

If a graph cuts the (x)-axis at three distinct points, how many real zeroes will it have?

Explanation opens after your attempt
Correct Answer

A. तीनThree

Step 1

Concept

Each distinct intersection with the (x)-axis gives one real zero. Therefore three distinct intersections give three real zeroes.

Step 2

Why this answer is correct

The correct answer is A. तीन / Three. Each distinct intersection with the (x)-axis gives one real zero. Therefore three distinct intersections give three real zeroes.

Step 3

Exam Tip

हर अलग (x)-अक्ष कटाव एक वास्तविक शून्यक देता है। इसलिए तीन अलग कटावों से तीन वास्तविक शून्यक मिलेंगे।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि किसी ग्राफ के (x)-अक्ष से मिलने वाले बिंदु ((1,0)), ((2,0)), और ((5,0)) हैं, तो शून्यकों की संख्या क्या है?

If the points where a graph meets the (x)-axis are ((1,0)), ((2,0)), and ((5,0)), how many zeroes are there?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

Each distinct intersection with the (x)-axis gives one zero. Here there are three distinct points, so there are three zeroes.

Step 2

Why this answer is correct

The correct answer is A. (3). Each distinct intersection with the (x)-axis gives one zero. Here there are three distinct points, so there are three zeroes.

Step 3

Exam Tip

हर अलग (x)-अक्ष कटाव एक शून्यक देता है। यहाँ तीन अलग बिंदु हैं, इसलिए तीन शून्यक हैं।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

किसी बहुपद (p(x)) के शून्यक ज्ञात करने के लिए ग्राफ पर कौन-से बिंदु देखे जाते हैं?

Which points on the graph are observed to find the zeroes of a polynomial (p(x))?

Explanation opens after your attempt
Correct Answer

A. (x)-अक्ष से मिलने वाले बिंदुPoints meeting the (x)-axis

Step 1

Concept

For a zero, (p(x)=0), which means (y=0). Points with (y=0) lie on the (x)-axis.

Step 2

Why this answer is correct

The correct answer is A. (x)-अक्ष से मिलने वाले बिंदु / Points meeting the (x)-axis. For a zero, (p(x)=0), which means (y=0). Points with (y=0) lie on the (x)-axis.

Step 3

Exam Tip

शून्यक के लिए (p(x)=0), यानी (y=0) होना चाहिए। (y=0) वाले बिंदु (x)-अक्ष पर होते हैं।

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Question Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि परवलय (x)-अक्ष को दो अलग-अलग बिंदुओं पर काटता है, तो द्विघात बहुपद के कितने शून्यक होंगे?

If a parabola cuts the (x)-axis at two distinct points, how many zeroes does the quadratic polynomial have?

Explanation opens after your attempt
Correct Answer

A. दोTwo

Step 1

Concept

The graph of a quadratic polynomial is a parabola. Two distinct intersections with the (x)-axis show two real zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो / Two. The graph of a quadratic polynomial is a parabola. Two distinct intersections with the (x)-axis show two real zeroes.

Step 3

Exam Tip

द्विघात बहुपद का ग्राफ परवलय होता है। (x)-अक्ष पर दो अलग-अलग कटाव दो वास्तविक शून्यक बताते हैं।

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Question Expert Science Unit 2: World of Living Heredity and Evolution Class 10 Level 19

मेंडल के एकल संकरण में दूसरी पीढ़ी का तीन अनुपात एक परिणाम किस मूल सिद्धांत की ओर संकेत करता है?

In Mendel's monohybrid cross the 3 to 1 result in second generation points to which basic principle?

Explanation opens after your attempt
Correct Answer

A. लक्षणों के रूप अलग होकर जनन कोशिकाओं में जाते हैंForms of a trait separate into gametes

Step 1

Concept

The recessive trait was hidden in the first generation.

Step 2

Why this answer is correct

It appeared again in the second generation.

Step 3

Exam Tip

This shows trait forms pass as separate units. चरण 1: पहली पीढ़ी में अप्रभावी लक्षण छिपा था। चरण 2: दूसरी पीढ़ी में वह फिर प्रकट हुआ। चरण 3: इससे समझ आता है कि लक्षणों के रूप अलग इकाइयों की तरह आगे जाते हैं।

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Question Medium Science Unit 2: World of Living Heredity and Evolution Class 10 Level 21

किसी लक्षण के दो रूपों में से केवल एक रूप पहली पीढ़ी में दिखाई देता है। यह किस सिद्धांत की ओर संकेत करता है?

Only one form of a trait appears in the first generation out of two forms. This points to which idea?

Explanation opens after your attempt
Correct Answer

A. प्रभाविताDominance

Step 1

Concept

In the first generation one trait can hide the other.

Step 2

Why this answer is correct

The visible trait is called dominant.

Step 3

Exam Tip

This is related to Mendel's idea of dominance. चरण 1: पहली पीढ़ी में एक लक्षण दूसरे को छिपा सकता है। चरण 2: दिखाई देने वाला लक्षण प्रभावी कहलाता है। चरण 3: यह मेंडल की प्रभाविता की समझ से जुड़ा है।

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Question Hard Social Science Chapter 2: Nationalism in India The First World War, Khilafat, and Non-Cooperation Class 10 Level 16

अली बंधुओं और गांधीजी का सहयोग किस बड़े लक्ष्य की ओर इशारा करता है?

The cooperation between the Ali brothers and Gandhi points toward which larger goal?

Explanation opens after your attempt
Correct Answer

A. औपनिवेशिक शासन के विरुद्ध व्यापक जनएकता बनानाBuilding broad mass unity against colonial rule

Step 1

Concept

The Ali brothers were major leaders of the Khilafat Movement.

Step 2

Why this answer is correct

Gandhi was raising the demand for swaraj through non-cooperation.

Step 3

Exam Tip

Their cooperation was a strategy of wider anti-colonial resistance. चरण 1: अली बंधु खिलाफत आंदोलन के प्रमुख नेता थे। चरण 2: गांधीजी असहयोग के माध्यम से स्वराज की मांग उठा रहे थे। चरण 3: उनका सहयोग व्यापक औपनिवेशिक विरोध की रणनीति था।

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Question Hard Social Science Chapter 1: The Rise of Nationalism in Europe The Age of Revolutions: 1830-1848 Class 10 Level 3

सिलेसिया के बुनकरों का विद्रोह किस गहरे आर्थिक बदलाव की ओर संकेत करता है?

The revolt of Silesian weavers points to which deeper economic change?

Explanation opens after your attempt
Correct Answer

A. औद्योगिक उत्पादन में श्रमिकों और छोटे उत्पादकों का शोषण बढ़ रहा थाExploitation of workers and small producers was increasing in industrial production

Step 1

Concept

Silesian weavers suffered from low wages and exploitation.

Step 2

Why this answer is correct

This shows inequality and crisis in the industrial economy.

Step 3

Exam Tip

Link workers' revolt with economic causes. चरण 1: सिलेसिया के बुनकर कम मजदूरी और शोषण से परेशान थे। चरण 2: यह औद्योगिक अर्थव्यवस्था में असमानता और संकट दिखाता है। चरण 3: श्रमिक विद्रोह को आर्थिक कारणों से जोड़ें।

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Question Expert Science Unit 1: Chemical Substances – Nature and Behaviour Carbon and its Compounds Class 10 Level 15

सहसंयोजक यौगिकों के गलनांक और क्वथनांक प्रायः कम क्यों होते हैं?

Why do covalent compounds generally have low melting and boiling points?

Explanation opens after your attempt
Correct Answer

A. क्योंकि अणुओं के बीच आकर्षण बल कमजोर होते हैंBecause intermolecular forces are weak

Step 1

Concept

Covalent compounds exist as separate molecules.

Step 2

Why this answer is correct

The forces between their molecules are usually weak.

Step 3

Exam Tip

So less energy is needed to melt or boil them. चरण 1: सहसंयोजक यौगिक अलग अलग अणुओं के रूप में होते हैं। चरण 2: उनके अणुओं के बीच आकर्षण बल प्रायः कमजोर होते हैं। चरण 3: इसलिए उन्हें पिघलाने या उबालने के लिए कम ऊर्जा चाहिए।

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Question Easy Science Unit 1: Chemical Substances – Nature and Behaviour Carbon and its Compounds Class 10 Level 2

कार्बन यौगिकों का गलनांक और क्वथनांक सामान्यतः कम क्यों होता है?

Why do carbon compounds generally have low melting and boiling points?

Explanation opens after your attempt
Correct Answer

A. उनके अणुओं के बीच बल कमजोर होते हैंThe forces between their molecules are weak

Step 1

Concept

Most carbon compounds are covalent.

Step 2

Why this answer is correct

The attraction between their molecules is relatively weak.

Step 3

Exam Tip

Therefore their melting and boiling points are generally low. चरण 1: अधिकतर कार्बन यौगिक सहसंयोजक होते हैं। चरण 2: उनके अणुओं के बीच आकर्षण बल अपेक्षाकृत कमजोर होते हैं। चरण 3: इसलिए उनका गलनांक और क्वथनांक सामान्यतः कम होता है।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=(x+2)2) है तो ग्राफ (x)-अक्ष के साथ कैसा व्यवहार करेगा?

If (p(x)=(x+2)2), how will its graph behave with the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-2,0)) पर छुएगाIt will touch at ((-2,0))

Step 1

Concept

The repeated factor gives equal zero (-2). A quadratic parabola generally touches the (x)-axis at such a point.

Step 2

Why this answer is correct

The correct answer is A. ((-2,0)) पर छुएगा / It will touch at ((-2,0)). The repeated factor gives equal zero (-2). A quadratic parabola generally touches the (x)-axis at such a point.

Step 3

Exam Tip

दोहराए गुणनखंड से समान शून्यक (-2) मिलता है। द्विघात परवलय ऐसे बिंदु पर सामान्यतः (x)-अक्ष को छूता है।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

द्विघात बहुपद (p(x)=x-2+4) के ग्राफ के बारे में कौन सा कथन सही है?

Which statement is correct about the graph of the quadratic polynomial (p(x)=x-2+4)?

Explanation opens after your attempt
Correct Answer

A. यह (x)-अक्ष को नहीं काटताIt does not cut the (x)-axis

Step 1

Concept

\(x^2+4\) is always positive so (y=0) never occurs. Count a zero only when the graph meets the axis.

Step 2

Why this answer is correct

The correct answer is A. यह (x)-अक्ष को नहीं काटता / It does not cut the (x)-axis. \(x^2+4\) is always positive so (y=0) never occurs. Count a zero only when the graph meets the axis.

Step 3

Exam Tip

\(x^2+4\) हमेशा धनात्मक है इसलिए (y=0) नहीं होता। ग्राफ से शून्यक तभी मानें जब अक्ष से मिलन हो।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि परवलय (x)-अक्ष से ऊपर ही रहता है और उसे कहीं नहीं छूता तो वास्तविक शून्यकों की संख्या क्या होगी?

If a parabola remains entirely above the (x)-axis and never touches it, how many real zeroes does it have?

Explanation opens after your attempt
Correct Answer

A. शून्यZero

Step 1

Concept

If the graph does not meet the (x)-axis there is no real zero. Only points with (y=0) are counted.

Step 2

Why this answer is correct

The correct answer is A. शून्य / Zero. If the graph does not meet the (x)-axis there is no real zero. Only points with (y=0) are counted.

Step 3

Exam Tip

ग्राफ (x)-अक्ष से न मिले तो वास्तविक शून्यक नहीं होता। केवल (y=0) वाले बिंदु गिने जाते हैं।

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Question Expert Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि किसी ग्राफ के (x)-अक्ष कटान ((-4,0)), ((6,0)), ((16,0)) हैं, तो इनके शून्यकों का माध्य क्या है?

If the (x)-axis intersections of a graph are ((-4,0)), ((6,0)), ((16,0)), what is the mean of their zeroes?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

The mean is \(\frac{-4+6+16}{3}=6\). Tip: first read the (x)-values from intersection points.

Step 2

Why this answer is correct

The correct answer is A. (6). The mean is \(\frac{-4+6+16}{3}=6\). Tip: first read the (x)-values from intersection points.

Step 3

Exam Tip

माध्य \(\frac{-4+6+16}{3}=6\) है। टिप: पहले कटान बिंदुओं से (x)-मान पढ़ें।

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