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zero b MCQ Questions for Class 10

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

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3 questions tagged with zero b.

Question 1/3 Easy Mathematics Quadratic Equations Nature of Roots Class 10 Level 37

समीकरण \(2x^2+8=0\) के मूलों की प्रकृति क्या होगी?

What will be the nature of roots of \(2x^2+8=0\)?

Explanation opens after your attempt
Correct Answer

A. वास्तविक मूल नहींno real roots

Step 1

Concept

(D=02-4(2)(8)=-64<0). Therefore the equation will have no real roots.

Step 2

Why this answer is correct

The correct answer is A. वास्तविक मूल नहीं / no real roots. (D=02-4(2)(8)=-64<0). Therefore the equation will have no real roots.

Step 3

Exam Tip

(D=02-4(2)(8)=-64<0) है। इसलिए समीकरण के वास्तविक मूल नहीं होंगे।

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Question 2/3 Easy Mathematics Quadratic Equations Nature of Roots Class 10 Level 37

समीकरण \(4x^2-1=0\) के मूल कैसे होंगे?

How will the roots of \(4x^2-1=0\) be?

Explanation opens after your attempt
Correct Answer

A. दो वास्तविक और असमानtwo real and distinct

Step 1

Concept

(D=02-4(4)(-1)=16>0). Hence two distinct real roots will be obtained.

Step 2

Why this answer is correct

The correct answer is A. दो वास्तविक और असमान / two real and distinct. (D=02-4(4)(-1)=16>0). Hence two distinct real roots will be obtained.

Step 3

Exam Tip

(D=02-4(4)(-1)=16>0) है। इसलिए दो असमान वास्तविक मूल मिलेंगे।

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Question 3/3 Easy Mathematics Quadratic Equations Nature of Roots Class 10 Level 37

समीकरण \(x^2+9=0\) के लिए सही विकल्प चुनिए।

Choose the correct option for \(x^2+9=0\).

Explanation opens after your attempt
Correct Answer

A. वास्तविक मूल नहींno real roots

Step 1

Concept

Here (D=02-4(1)(9)=-36<0). Therefore there are no real roots.

Step 2

Why this answer is correct

The correct answer is A. वास्तविक मूल नहीं / no real roots. Here (D=02-4(1)(9)=-36<0). Therefore there are no real roots.

Step 3

Exam Tip

यहां (D=02-4(1)(9)=-36<0) है। इसलिए वास्तविक मूल नहीं हैं।

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