Concept-wise Practice

quotient of surds MCQ Questions for Class 10

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

Practice Questions

3 questions tagged with quotient of surds.

Question 1/3 Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

यदि \(x=\frac{\sqrt{3}}{\sqrt{2}}\), तो \(x^2\) और (x) की प्रकृति के बारे में सही कथन कौन-सा है?

If \(x=\frac{\sqrt{3}}{\sqrt{2}}\), which statement about \(x^2\) and (x) is correct?

Explanation opens after your attempt
Correct Answer

A. (x) अपरिमेय है और \(x^2\) परिमेय है(x) is irrational and \(x^2\) is rational

Step 1

Concept

\(x=\sqrt{\frac{3}{2}}\), which is irrational because \(\frac{3}{2}\) is not a perfect square of a rational number.

Step 2

Why this answer is correct

\(x^2=\frac{3}{2}\), which is rational.

Step 3

Exam Tip

The square of an irrational number can sometimes be rational. चरण 1: \(x=\sqrt{\frac{3}{2}}\) है, जो अपरिमेय है क्योंकि \(\frac{3}{2}\) परिमेय पूर्ण वर्ग नहीं है। चरण 2: \(x^2=\frac{3}{2}\), जो परिमेय है। चरण 3: किसी अपरिमेय संख्या का वर्ग कभी-कभी परिमेय हो सकता है।

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Question 2/3 Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

यदि \(x=\sqrt{6}+\sqrt{2}\) और \(y=\sqrt{6}-\sqrt{2}\), तो \(\frac{x}{y}\) का सरल रूप क्या है?

If \(x=\sqrt{6}+\sqrt{2}\) and \(y=\sqrt{6}-\sqrt{2}\), what is the simplified form of \(\frac{x}{y}\)?

Explanation opens after your attempt
Correct Answer

A. \(2+\sqrt{3}\)

Step 1

Concept

Rationalize the denominator of \(\frac{\sqrt{6}+\sqrt{2}}{\sqrt{6}-\sqrt{2}}\).

Step 2

Why this answer is correct

The numerator becomes (\(\sqrt{6}+\sqrt{2}\)2=8+4\sqrt{3}), and the denominator is (6-2=4), so the value is \(2+\sqrt{3}\).

Step 3

Exam Tip

Multiplying by the conjugate is effective in such quotients. चरण 1: \(\frac{\sqrt{6}+\sqrt{2}}{\sqrt{6}-\sqrt{2}}\) में हर को संयुग्मी से परिमेय करें। चरण 2: ऊपर (\(\sqrt{6}+\sqrt{2}\)2=8+4\sqrt{3}) और नीचे (6-2=4), इसलिए मान \(2+\sqrt{3}\) है। चरण 3: भाग में संयुग्मी से गुणा करना प्रभावी तरीका है।

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Question 3/3 Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

कौन-सा विकल्प \(\frac{\sqrt{18}}{\sqrt{5}}\) की प्रकृति सही बताता है?

Which option correctly describes the nature of \(\frac{\sqrt{18}}{\sqrt{5}}\)?

Explanation opens after your attempt
Correct Answer

B. अपरिमेय, क्योंकि \(\frac{18}{5}\) पूर्ण वर्ग नहीं हैIrrational because \(\frac{18}{5}\) is not a perfect square

Step 1

Concept

\(\frac{\sqrt{18}}{\sqrt{5}}=\sqrt{\frac{18}{5}}\).

Step 2

Why this answer is correct

\(\frac{18}{5}\) is not a perfect square of a rational number, so the result is irrational.

Step 3

Exam Tip

In quotients of radicals, check whether the fraction inside is a perfect square. चरण 1: \(\frac{\sqrt{18}}{\sqrt{5}}=\sqrt{\frac{18}{5}}\) है। चरण 2: \(\frac{18}{5}\) किसी परिमेय संख्या का पूर्ण वर्ग नहीं है, इसलिए परिणाम अपरिमेय है। चरण 3: भाग वाले मूलों में अंदर के भिन्न को पूर्ण वर्ग है या नहीं, यह देखें।

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