Concept-wise Practice

D value MCQ Questions for Class 10

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

Practice Questions

4 questions tagged with D value.

यदि किसी द्विघात समीकरण में (D=5) है तो सही निष्कर्ष क्या है?

If a quadratic equation has (D=5), what is the correct conclusion?

Explanation opens after your attempt
Correct Answer

A. मूल वास्तविक, अपरिमेय और भिन्न हैंRoots are real, irrational and distinct

Step 1

Concept

(5>0), but (5) is not a perfect square. So the roots are real, irrational and distinct.

Step 2

Why this answer is correct

The correct answer is A. मूल वास्तविक, अपरिमेय और भिन्न हैं / Roots are real, irrational and distinct. (5>0), but (5) is not a perfect square. So the roots are real, irrational and distinct.

Step 3

Exam Tip

(5>0) है लेकिन (5) पूर्ण वर्ग नहीं है। इसलिए मूल वास्तविक, अपरिमेय और भिन्न होंगे।

Open Question Page
Ask Friends

यदि किसी द्विघात समीकरण में (D=25) है तो मूलों की प्रकृति क्या होगी?

If a quadratic equation has (D=25), what will be the nature of roots?

Explanation opens after your attempt
Correct Answer

A. वास्तविक, परिमेय और भिन्नReal, rational and distinct

Step 1

Concept

(25>0) and (25) is a perfect square. Therefore the roots are real, rational and distinct.

Step 2

Why this answer is correct

The correct answer is A. वास्तविक, परिमेय और भिन्न / Real, rational and distinct. (25>0) and (25) is a perfect square. Therefore the roots are real, rational and distinct.

Step 3

Exam Tip

(25>0) है और (25) पूर्ण वर्ग है। इसलिए मूल वास्तविक, परिमेय और भिन्न होंगे।

Open Question Page
Ask Friends

यदि किसी समीकरण में (D=4) है तो कौन सा कथन सही है?

If an equation has (D=4), which statement is correct?

Explanation opens after your attempt
Correct Answer

A. मूल वास्तविक और भिन्न हैंRoots are real and distinct

Step 1

Concept

Since (4>0), we have (D>0). Therefore the roots are real and distinct.

Step 2

Why this answer is correct

The correct answer is A. मूल वास्तविक और भिन्न हैं / Roots are real and distinct. Since (4>0), we have (D>0). Therefore the roots are real and distinct.

Step 3

Exam Tip

(4>0) है इसलिए (D>0) होगा। अतः मूल वास्तविक और भिन्न होंगे।

Open Question Page
Ask Friends

यदि किसी द्विघात समीकरण में \(b^2-4ac=9\) है तो मूलों की प्रकृति क्या होगी?

If \(b^2-4ac=9\) in a quadratic equation, what will be the nature of roots?

Explanation opens after your attempt
Correct Answer

A. वास्तविक और भिन्नReal and distinct

Step 1

Concept

Since (9>0), we have (D>0). Therefore the roots are real and distinct.

Step 2

Why this answer is correct

The correct answer is A. वास्तविक और भिन्न / Real and distinct. Since (9>0), we have (D>0). Therefore the roots are real and distinct.

Step 3

Exam Tip

क्योंकि (9>0) है इसलिए (D>0) होगा। अतः मूल वास्तविक और भिन्न होंगे।

Open Question Page
Ask Friends