Concept-wise Practice

introduction MCQ Questions for Class 10

introduction se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

7 questions tagged with introduction.

कौन सा कथन अंकगणितीय श्रेणी के लिए सही है?

Which statement is true for an arithmetic progression?

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Correct Answer

D. हर अगला पद पिछले पद में समान संख्या जोड़कर मिलता हैEach next term is obtained by adding the same number to the previous term

Step 1

Concept

In an arithmetic progression the same number is added. This number is called the common difference.

Step 2

Why this answer is correct

The correct answer is D. हर अगला पद पिछले पद में समान संख्या जोड़कर मिलता है / Each next term is obtained by adding the same number to the previous term. In an arithmetic progression the same number is added. This number is called the common difference.

Step 3

Exam Tip

अंकगणितीय श्रेणी में समान संख्या जोड़ी जाती है। यही संख्या सार्व अंतर कहलाती है।

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एक अंकगणितीय श्रेणी में (d) किसे दर्शाता है?

In an arithmetic progression, what does (d) represent?

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Correct Answer

C. सार्व अंतरCommon difference

Step 1

Concept

(d) represents the common difference. In exams identify (a) and (d) separately.

Step 2

Why this answer is correct

The correct answer is C. सार्व अंतर / Common difference. (d) represents the common difference. In exams identify (a) and (d) separately.

Step 3

Exam Tip

(d) सार्व अंतर को दर्शाता है। परीक्षा में (a) और (d) की पहचान अलग रखें।

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अनुक्रम \(12,10,8,6,\ldots\) का सार्व अंतर क्या है?

What is the common difference of the sequence \(12,10,8,6,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (-2)

Step 1

Concept

The common difference is (10-12=-2). A decreasing progression can have a negative difference.

Step 2

Why this answer is correct

The correct answer is B. (-2). The common difference is (10-12=-2). A decreasing progression can have a negative difference.

Step 3

Exam Tip

सार्व अंतर (10-12=-2) है। घटती श्रेणी में अंतर ऋणात्मक हो सकता है।

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किसी सूची में क्रमागत पदों का अंतर समान हो तो उस सूची को क्या कहते हैं?

What is a list called when the difference between consecutive terms is constant?

Explanation opens after your attempt
Correct Answer

A. अंकगणितीय श्रेणीArithmetic progression

Step 1

Concept

A constant difference between consecutive terms is the key sign of an arithmetic progression. In exams first check the differences.

Step 2

Why this answer is correct

The correct answer is A. अंकगणितीय श्रेणी / Arithmetic progression. A constant difference between consecutive terms is the key sign of an arithmetic progression. In exams first check the differences.

Step 3

Exam Tip

क्रमागत पदों का समान अंतर अंकगणितीय श्रेणी की मुख्य पहचान है। परीक्षा में पहले अंतर जांचें।

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द्विघात समीकरण \(ax^2+bx+c=0\) का विवेचक क्या होता है?

What is the discriminant of \(ax^2+bx+c=0\)?

Explanation opens after your attempt
Correct Answer

C. \(b^2-4ac\)

Step 1

Concept

The discriminant is \(D=b^2-4ac\). Remembering it helps in understanding the nature of roots.

Step 2

Why this answer is correct

The correct answer is C. \(b^2-4ac\). The discriminant is \(D=b^2-4ac\). Remembering it helps in understanding the nature of roots.

Step 3

Exam Tip

विवेचक \(D=b^2-4ac\) होता है। इसे याद रखने से मूलों की प्रकृति समझना आसान होता है।

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द्विघात समीकरण का सामान्य रूप कौन-सा है?

What is the general form of a quadratic equation?

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Correct Answer

A. \(ax^2+bx+c=0,\ a\neq 0\)

Step 1

Concept

A quadratic equation has highest power (2) of (x) and \(a\neq 0\). In exams identify the standard form first.

Step 2

Why this answer is correct

The correct answer is A. \(ax^2+bx+c=0,\ a\neq 0\). A quadratic equation has highest power (2) of (x) and \(a\neq 0\). In exams identify the standard form first.

Step 3

Exam Tip

द्विघात समीकरण में (x) की सबसे बड़ी घात (2) होती है और \(a\neq 0\) होता है। परीक्षा में पहले मानक रूप पहचानें।

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निम्न में से कौन सा समीकरण द्विघात समीकरण है?

Which of the following equations is a quadratic equation?

Explanation opens after your attempt
Correct Answer

A. \(x^2+3x+2=0\)

Step 1

Concept

A quadratic equation has highest power (2) of (x). In exams first check the degree.

Step 2

Why this answer is correct

The correct answer is A. \(x^2+3x+2=0\). A quadratic equation has highest power (2) of (x). In exams first check the degree.

Step 3

Exam Tip

द्विघात समीकरण में (x) की सबसे बड़ी घात (2) होती है। परीक्षा में सबसे पहले घात देखें।

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