Concept-wise Practice

wrong step MCQ Questions for Class 10

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

Practice Questions

1 questions tagged with wrong step.

कौन सा विकल्प \(\sqrt{2}\) के प्रमाण में सही नहीं है?

Which option is not correct in the proof of \(\sqrt{2}\)?

Explanation opens after your attempt
Correct Answer

D. \(a^2=2b^2\) से सीधे (a=2b)From \(a^2=2b^2\), directly (a=2b)

Step 1

Concept

From \(a^2=2b^2\), \(a^2\) is even.

Step 2

Why this answer is correct

This gives (a) even, but not directly (a=2b).

Step 3

Exam Tip

The correct step is to write (a=2k). चरण 1: \(a^2=2b^2\) से \(a^2\) सम मिलता है। चरण 2: इससे (a) सम है, लेकिन सीधे (a=2b) नहीं मिलता। चरण 3: सही कदम (a=2k) लिखना है।

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