Concept-wise Practice

radical-simplification MCQ Questions for Class 10

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

Practice Questions

24 questions tagged with radical-simplification.

यदि \(a=\sqrt{108}-\sqrt{48}\), तो संख्या रेखा पर (a) का सरल रूप क्या है?

If \(a=\sqrt{108}-\sqrt{48}\), what is the simplified form of (a) on the number line?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\( \sqrt{108}=6\sqrt{3} \) and \( \sqrt{48}=4\sqrt{3} \), so the difference is \(2\sqrt{3}\). Subtract only like radicals.

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{3}\). \( \sqrt{108}=6\sqrt{3} \) and \( \sqrt{48}=4\sqrt{3} \), so the difference is \(2\sqrt{3}\). Subtract only like radicals.

Step 3

Exam Tip

\( \sqrt{108}=6\sqrt{3} \) और \( \sqrt{48}=4\sqrt{3} \), इसलिए अंतर \(2\sqrt{3}\) है। समान मूलों को ही घटाएँ।

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यदि \(a=\sqrt{75}-\sqrt{27}\), तो संख्या रेखा पर (a) का सरल रूप क्या है?

If \(a=\sqrt{75}-\sqrt{27}\), what is the simplified form of (a) on the number line?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\( \sqrt{75}=5\sqrt{3} \) and \( \sqrt{27}=3\sqrt{3} \), so the difference is \(2\sqrt{3}\). Subtract only like radicals.

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{3}\). \( \sqrt{75}=5\sqrt{3} \) and \( \sqrt{27}=3\sqrt{3} \), so the difference is \(2\sqrt{3}\). Subtract only like radicals.

Step 3

Exam Tip

\( \sqrt{75}=5\sqrt{3} \) और \( \sqrt{27}=3\sqrt{3} \), इसलिए अंतर \(2\sqrt{3}\) है। समान मूलों को ही घटाएँ।

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संख्या रेखा पर \( \sqrt{2}+\sqrt{8} \) का सरल रूप कौन सा है?

What is the simplified form of \( \sqrt{2}+\sqrt{8} \) on the number line?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\( \sqrt{8}=2\sqrt{2} \), so \( \sqrt{2}+\sqrt{8}=3\sqrt{2} \). Only like radicals can be added.

Step 2

Why this answer is correct

The correct answer is A. \(3\sqrt{2}\). \( \sqrt{8}=2\sqrt{2} \), so \( \sqrt{2}+\sqrt{8}=3\sqrt{2} \). Only like radicals can be added.

Step 3

Exam Tip

\( \sqrt{8}=2\sqrt{2} \), इसलिए \( \sqrt{2}+\sqrt{8}=3\sqrt{2} \)। समान मूलों को ही जोड़ा जाता है।

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यदि \(a=\sqrt{27}-\sqrt{12}\), तो संख्या रेखा पर (a) का सरल रूप क्या है?

If \(a=\sqrt{27}-\sqrt{12}\), what is the simplified form of (a) on the number line?

Explanation opens after your attempt
Correct Answer

A. \( \sqrt{3} \)

Step 1

Concept

\( \sqrt{27}=3\sqrt{3} \) and \( \sqrt{12}=2\sqrt{3} \), so the difference is \( \sqrt{3} \). Subtract like radicals.

Step 2

Why this answer is correct

The correct answer is A. \( \sqrt{3} \). \( \sqrt{27}=3\sqrt{3} \) and \( \sqrt{12}=2\sqrt{3} \), so the difference is \( \sqrt{3} \). Subtract like radicals.

Step 3

Exam Tip

\( \sqrt{27}=3\sqrt{3} \) और \( \sqrt{12}=2\sqrt{3} \) इसलिए अंतर \( \sqrt{3} \) है। समान मूलों को घटाएँ।

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यदि (p(x)=x-2-\(\sqrt{2}+\sqrt{8}\)x+4) है, तो शून्यकों का योग क्या है?

If (p(x)=x-2-\(\sqrt{2}+\sqrt{8}\)x+4), what is the sum of its zeroes?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

The sum is \(\sqrt{2}+\sqrt{8}=\sqrt{2}+2\sqrt{2}=3\sqrt{2}\). Simplify radicals before giving the final answer.

Step 2

Why this answer is correct

The correct answer is A. \(3\sqrt{2}\). The sum is \(\sqrt{2}+\sqrt{8}=\sqrt{2}+2\sqrt{2}=3\sqrt{2}\). Simplify radicals before giving the final answer.

Step 3

Exam Tip

योग \(\sqrt{2}+\sqrt{8}=\sqrt{2}+2\sqrt{2}=3\sqrt{2}\) है। मूलों को सरल करके ही अंतिम उत्तर दें।

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यदि \(\sqrt{2}\) और \(-\sqrt{8}\) किसी बहुपद के शून्यक हैं, तो उनके योग का सरल रूप क्या है?

If \(\sqrt{2}\) and \(-\sqrt{8}\) are zeroes of a polynomial, what is the simplified form of their sum?

Explanation opens after your attempt
Correct Answer

A. \(-\sqrt{2}\)

Step 1

Concept

\(\sqrt{8}=2\sqrt{2}\), so the sum is \(\sqrt{2}-2\sqrt{2}=-\sqrt{2}\). Simplifying radicals first reduces mistakes.

Step 2

Why this answer is correct

The correct answer is A. \(-\sqrt{2}\). \(\sqrt{8}=2\sqrt{2}\), so the sum is \(\sqrt{2}-2\sqrt{2}=-\sqrt{2}\). Simplifying radicals first reduces mistakes.

Step 3

Exam Tip

\(\sqrt{8}=2\sqrt{2}\), इसलिए योग \(\sqrt{2}-2\sqrt{2}=-\sqrt{2}\) है। मूलों को पहले सरल करने से गलती कम होती है।

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यदि (p(x)=2x-2-8x+1) है, तो शून्यकों का सही रूप कौन सा है?

If (p(x)=2x-2-8x+1), which is the correct form of its zeroes?

Explanation opens after your attempt
Correct Answer

A. \(2\pm\frac{\sqrt{14}}{2}\)

Step 1

Concept

By the formula, \(x=\frac{8\pm\sqrt{64-8}}{4}=2\pm\frac{\sqrt{14}}{2}\). Divide the whole numerator by the denominator carefully.

Step 2

Why this answer is correct

The correct answer is A. \(2\pm\frac{\sqrt{14}}{2}\). By the formula, \(x=\frac{8\pm\sqrt{64-8}}{4}=2\pm\frac{\sqrt{14}}{2}\). Divide the whole numerator by the denominator carefully.

Step 3

Exam Tip

सूत्र से \(x=\frac{8\pm\sqrt{64-8}}{4}=2\pm\frac{\sqrt{14}}{2}\) है। हर से भाग देते समय पूरे अंश को बाँटें।

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यदि \(\sqrt{3}\) और \(\sqrt{12}\) किसी द्विघात बहुपद के शून्यक हैं, तो एकक बहुपद में (x) का गुणांक क्या होगा?

If \(\sqrt{3}\) and \(\sqrt{12}\) are zeroes of a monic quadratic polynomial, what will be the coefficient of (x)?

Explanation opens after your attempt
Correct Answer

A. \(-3\sqrt{3}\)

Step 1

Concept

\(\sqrt{12}=2\sqrt{3}\), so the sum is \(3\sqrt{3}\). In a monic polynomial, the coefficient of (x) is the negative of the sum of zeroes.

Step 2

Why this answer is correct

The correct answer is A. \(-3\sqrt{3}\). \(\sqrt{12}=2\sqrt{3}\), so the sum is \(3\sqrt{3}\). In a monic polynomial, the coefficient of (x) is the negative of the sum of zeroes.

Step 3

Exam Tip

\(\sqrt{12}=2\sqrt{3}\), इसलिए योग \(3\sqrt{3}\) है। एकक बहुपद में (x) का गुणांक शून्यकों के योग का ऋणात्मक होता है।

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किस विकल्प में \(\sqrt{12}\) का सही सरल रूप है जो बहुपद के शून्यक सरल करने में उपयोगी है?

Which option gives the correct simplified form of \(\sqrt{12}\), useful in simplifying polynomial zeroes?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{12}=\sqrt{4\cdot3}=2\sqrt{3}\). While simplifying zeroes, take square factors outside the radical.

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{3}\). \(\sqrt{12}=\sqrt{4\cdot3}=2\sqrt{3}\). While simplifying zeroes, take square factors outside the radical.

Step 3

Exam Tip

\(\sqrt{12}=\sqrt{4\cdot3}=2\sqrt{3}\) होता है। शून्यक सरल करते समय वर्ग गुणनखंड बाहर निकालें।

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यदि (p(x)=x-2-4x-6) है, तो शून्यकों का सही युग्म कौन सा है?

If (p(x)=x-2-4x-6), which is the correct pair of zeroes?

Explanation opens after your attempt
Correct Answer

A. \(2\pm\sqrt{10}\)

Step 1

Concept

By the formula, \(x=\frac{4\pm\sqrt{16+24}}{2}=2\pm\sqrt{10}\). Remember \(\sqrt{40}=2\sqrt{10}\) while simplifying (D).

Step 2

Why this answer is correct

The correct answer is A. \(2\pm\sqrt{10}\). By the formula, \(x=\frac{4\pm\sqrt{16+24}}{2}=2\pm\sqrt{10}\). Remember \(\sqrt{40}=2\sqrt{10}\) while simplifying (D).

Step 3

Exam Tip

सूत्र से \(x=\frac{4\pm\sqrt{16+24}}{2}=2\pm\sqrt{10}\) है। (D) को सरल करने में \(\sqrt{40}=2\sqrt{10}\) याद रखें।

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यदि \(\sqrt{2}\) और \(\sqrt{8}\) किसी द्विघात बहुपद के शून्यक हैं, तो शून्यकों का योग क्या है?

If \(\sqrt{2}\) and \(\sqrt{8}\) are zeroes of a quadratic polynomial, what is the sum of the zeroes?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Since \(\sqrt{8}=2\sqrt{2}\), the sum is \(\sqrt{2}+2\sqrt{2}=3\sqrt{2}\). Simplify radicals first.

Step 2

Why this answer is correct

The correct answer is A. \(3\sqrt{2}\). Since \(\sqrt{8}=2\sqrt{2}\), the sum is \(\sqrt{2}+2\sqrt{2}=3\sqrt{2}\). Simplify radicals first.

Step 3

Exam Tip

क्योंकि \(\sqrt{8}=2\sqrt{2}\), योग \(\sqrt{2}+2\sqrt{2}=3\sqrt{2}\) है। पहले करणी को सरल करें।

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यदि (p(x)=x-2-mx+9) के शून्यक \(3\sqrt{2}\) और \(\frac{3}{\sqrt{2}}\) हैं, तो (m) क्या होगा?

If zeroes of (p(x)=x-2-mx+9) are \(3\sqrt{2}\) and \(\frac{3}{\sqrt{2}}\), what is (m)?

Explanation opens after your attempt
Correct Answer

A. \(\frac{9\sqrt{2}}{2}\)

Step 1

Concept

The sum is \(3\sqrt{2}+\frac{3}{\sqrt{2}}=\frac{9\sqrt{2}}{2}\). Hence \(m=\frac{9\sqrt{2}}{2}\).

Step 2

Why this answer is correct

The correct answer is A. \(\frac{9\sqrt{2}}{2}\). The sum is \(3\sqrt{2}+\frac{3}{\sqrt{2}}=\frac{9\sqrt{2}}{2}\). Hence \(m=\frac{9\sqrt{2}}{2}\).

Step 3

Exam Tip

योग \(3\sqrt{2}+\frac{3}{\sqrt{2}}=\frac{9\sqrt{2}}{2}\) है। इसलिए \(m=\frac{9\sqrt{2}}{2}\) होगा।

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\(\sqrt{275}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{275}\)?

Explanation opens after your attempt
Correct Answer

A. \(5\sqrt{11}\)

Step 1

Concept

\(275=25 \times 11\).

Step 2

Why this answer is correct

\(\sqrt{275}=\sqrt{25 \times 11}=5\sqrt{11}\).

Step 3

Exam Tip

Take the perfect square factor outside to simplify the answer. चरण 1: \(275=25 \times 11\) है। चरण 2: \(\sqrt{275}=\sqrt{25 \times 11}=5\sqrt{11}\)। चरण 3: पूर्ण वर्ग गुणनखंड बाहर निकालकर उत्तर को सरल बनाएं।

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\(\sqrt{192}\) को सरल कीजिए।

Simplify \(\sqrt{192}\).

Explanation opens after your attempt
Correct Answer

A. \(8\sqrt{3}\)

Step 1

Concept

\(192=64 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{192}=\sqrt{64 \times 3}=8\sqrt{3}\).

Step 3

Exam Tip

To fully simplify the answer, take out the largest perfect square. चरण 1: \(192=64 \times 3\) है। चरण 2: \(\sqrt{192}=\sqrt{64 \times 3}=8\sqrt{3}\)। चरण 3: उत्तर को पूरा सरल करने के लिए सबसे बड़ा पूर्ण वर्ग बाहर निकालें।

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\(\sqrt{300}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{300}\)?

Explanation opens after your attempt
Correct Answer

A. \(10\sqrt{3}\)

Step 1

Concept

Write \(300=100 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{300}=\sqrt{100 \times 3}=10\sqrt{3}\).

Step 3

Exam Tip

When you see a perfect square like (100), take it outside as (10). चरण 1: \(300=100 \times 3\) लिखें। चरण 2: \(\sqrt{300}=\sqrt{100 \times 3}=10\sqrt{3}\)। चरण 3: (100) जैसा पूर्ण वर्ग दिखे तो उसे बाहर (10) के रूप में निकालें।

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\(\sqrt{242}\) का सरल रूप क्या होगा?

What will be the simplified form of \(\sqrt{242}\)?

Explanation opens after your attempt
Correct Answer

A. \(11\sqrt{2}\)

Step 1

Concept

\(242=121 \times 2\).

Step 2

Why this answer is correct

\(\sqrt{242}=\sqrt{121 \times 2}=11\sqrt{2}\).

Step 3

Exam Tip

Recognising large perfect squares like (121) is very useful in simplification. चरण 1: \(242=121 \times 2\) है। चरण 2: \(\sqrt{242}=\sqrt{121 \times 2}=11\sqrt{2}\)। चरण 3: बड़े पूर्ण वर्ग जैसे (121) को पहचानना सरलीकरण में बहुत उपयोगी है।

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\(\sqrt{108}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{108}\)?

Explanation opens after your attempt
Correct Answer

B. \(6\sqrt{3}\)

Step 1

Concept

Write \(108=36 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{108}=\sqrt{36 \times 3}=6\sqrt{3}\).

Step 3

Exam Tip

While simplifying a square root, choosing the largest perfect square factor is helpful. चरण 1: \(108=36 \times 3\) लिखें। चरण 2: \(\sqrt{108}=\sqrt{36 \times 3}=6\sqrt{3}\)। चरण 3: वर्गमूल सरल करते समय सबसे बड़ा पूर्ण वर्ग गुणनखंड चुनना अच्छा रहता है।

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\(\sqrt{112}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{112}\)?

Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{7}\)

Step 1

Concept

\(112=16 \times 7\).

Step 2

Why this answer is correct

\(\sqrt{112}=\sqrt{16 \times 7}=4\sqrt{7}\).

Step 3

Exam Tip

After simplification, check that the remaining number has no perfect square factor. चरण 1: \(112=16 \times 7\) है। चरण 2: \(\sqrt{112}=\sqrt{16 \times 7}=4\sqrt{7}\)। चरण 3: सरलीकरण में अंदर बची संख्या को फिर पूर्ण वर्ग के लिए जांचें।

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\(\sqrt{63}\) को सरल कीजिए।

Simplify \(\sqrt{63}\).

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{7}\)

Step 1

Concept

\(63=9 \times 7\).

Step 2

Why this answer is correct

\(\sqrt{63}=\sqrt{9 \times 7}=3\sqrt{7}\).

Step 3

Exam Tip

Remember to take a perfect square like (9) outside the root. चरण 1: \(63=9 \times 7\) है। चरण 2: \(\sqrt{63}=\sqrt{9 \times 7}=3\sqrt{7}\)। चरण 3: (9) जैसे पूर्ण वर्ग को बाहर निकालना याद रखें।

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\(\sqrt{150}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{150}\)?

Explanation opens after your attempt
Correct Answer

A. \(5\sqrt{6}\)

Step 1

Concept

Write \(150=25 \times 6\).

Step 2

Why this answer is correct

\(\sqrt{150}=\sqrt{25 \times 6}=5\sqrt{6}\).

Step 3

Exam Tip

Take the perfect square factor outside and leave the remaining factor inside. चरण 1: \(150=25 \times 6\) लिखें। चरण 2: \(\sqrt{150}=\sqrt{25 \times 6}=5\sqrt{6}\)। चरण 3: पूर्ण वर्ग गुणनखंड बाहर निकालकर बाकी गुणनखंड अंदर छोड़ें।

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\(\sqrt{28}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{28}\)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{7}\)

Step 1

Concept

Write \(28=4 \times 7\).

Step 2

Why this answer is correct

\(\sqrt{28}=\sqrt{4 \times 7}=2\sqrt{7}\).

Step 3

Exam Tip

While simplifying a square root, take the perfect square factor outside. चरण 1: \(28=4 \times 7\) लिखें। चरण 2: \(\sqrt{28}=\sqrt{4 \times 7}=2\sqrt{7}\)। चरण 3: वर्गमूल सरल करते समय पूर्ण वर्ग गुणनखंड को बाहर निकालें।

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\(\sqrt{32}\) को सरल कीजिए।

Simplify \(\sqrt{32}\).

Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{2}\)

Step 1

Concept

\(32=16 \times 2\).

Step 2

Why this answer is correct

\(\sqrt{32}=\sqrt{16 \times 2}=4\sqrt{2}\).

Step 3

Exam Tip

To fully simplify the answer, take out the largest perfect square. चरण 1: \(32=16 \times 2\) है। चरण 2: \(\sqrt{32}=\sqrt{16 \times 2}=4\sqrt{2}\)। चरण 3: उत्तर को पूरी तरह सरल करने के लिए सबसे बड़ा पूर्ण वर्ग बाहर निकालें।

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\(\sqrt{20}\) का सरल रूप कौन-सा है?

Which is the simplified form of \(\sqrt{20}\)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{5}\)

Step 1

Concept

\(20=4 \times 5\).

Step 2

Why this answer is correct

\(\sqrt{20}=\sqrt{4 \times 5}=2\sqrt{5}\).

Step 3

Exam Tip

Take the perfect square outside the root and leave the remaining factor inside. चरण 1: \(20=4 \times 5\) है। चरण 2: \(\sqrt{20}=\sqrt{4 \times 5}=2\sqrt{5}\)। चरण 3: वर्गमूल के अंदर पूर्ण वर्ग को बाहर निकालें और बाकी अंदर रहने दें।

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\(\sqrt{12}\) को सरल करने पर कौन-सा रूप मिलता है?

Which form is obtained by simplifying \(\sqrt{12}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Write \(12=4 \times 3\).

Step 2

Why this answer is correct

\(\sqrt{12}=\sqrt{4 \times 3}=2\sqrt{3}\).

Step 3

Exam Tip

While simplifying square roots, take the perfect square factor outside. चरण 1: \(12=4 \times 3\) लिखें। चरण 2: \(\sqrt{12}=\sqrt{4 \times 3}=2\sqrt{3}\)। चरण 3: वर्गमूल सरल करते समय पूर्ण वर्ग गुणनखंड बाहर निकालें।

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