Concept-wise Practice

not-zero MCQ Questions for Class 10

not-zero se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

6 questions tagged with not-zero.

यदि (p(x)=x-3-2x-2-5x+6), तो निम्न में से कौन सा शून्यक नहीं है?

If (p(x)=x-3-2x-2-5x+6), which of the following is not a zero?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

(p(2)=8-8-10+6=-4), so (2) is not a zero. The other options can be checked by substitution.

Step 2

Why this answer is correct

The correct answer is B. (2). (p(2)=8-8-10+6=-4), so (2) is not a zero. The other options can be checked by substitution.

Step 3

Exam Tip

(p(2)=8-8-10+6=-4) है इसलिए (2) शून्यक नहीं है। बाकी विकल्पों को भी प्रतिस्थापन से जांच सकते हैं।

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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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यदि किसी ग्राफ में ((4,2)) बिंदु है, तो क्या (4) शून्यक है?

If a graph has the point ((4,2)), is (4) a zero?

Explanation opens after your attempt
Correct Answer

A. नहींNo

Step 1

Concept

In ((4,2)), (y=2), not (0). Therefore (x=4) is not a zero.

Step 2

Why this answer is correct

The correct answer is A. नहीं / No. In ((4,2)), (y=2), not (0). Therefore (x=4) is not a zero.

Step 3

Exam Tip

((4,2)) में (y=2) है, (0) नहीं। इसलिए (x=4) शून्यक नहीं है।

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यदि (p(5)\neq 0), तो (5) के बारे में क्या कहा जाएगा?

If (p(5)\neq 0), what can be said about (5)?

Explanation opens after your attempt
Correct Answer

A. (5) शून्यक नहीं है(5) is not a zero

Step 1

Concept

For (5) to be a zero, (p(5)=0) is necessary. If (p(5)\neq 0), then (5) is not a zero.

Step 2

Why this answer is correct

The correct answer is A. (5) शून्यक नहीं है / (5) is not a zero. For (5) to be a zero, (p(5)=0) is necessary. If (p(5)\neq 0), then (5) is not a zero.

Step 3

Exam Tip

शून्यक होने के लिए (p(5)=0) जरूरी है। यदि (p(5)\neq 0), तो (5) शून्यक नहीं है।

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यदि (p(0)=4), तो क्या (0) बहुपद का शून्यक है?

If (p(0)=4), is (0) a zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. नहींNo

Step 1

Concept

For (0) to be a zero, (p(0)=0) must be true. Here (p(0)=4), so (0) is not a zero.

Step 2

Why this answer is correct

The correct answer is A. नहीं / No. For (0) to be a zero, (p(0)=0) must be true. Here (p(0)=4), so (0) is not a zero.

Step 3

Exam Tip

शून्यक होने के लिए (p(0)=0) होना चाहिए। यहाँ (p(0)=4), इसलिए (0) शून्यक नहीं है।

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यदि (p(2)=5), तो क्या (2) बहुपद का शून्यक है?

If (p(2)=5), is (2) a zero of the polynomial?

Explanation opens after your attempt
Correct Answer

A. नहींNo

Step 1

Concept

For (2) to be a zero, (p(2)=0) must hold. Here (p(2)=5), so (2) is not a zero.

Step 2

Why this answer is correct

The correct answer is A. नहीं / No. For (2) to be a zero, (p(2)=0) must hold. Here (p(2)=5), so (2) is not a zero.

Step 3

Exam Tip

शून्यक होने के लिए (p(2)=0) होना चाहिए। यहाँ (p(2)=5), इसलिए (2) शून्यक नहीं है।

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