Concept-wise Practice

radical-multiplication MCQ Questions for Class 10

radical-multiplication 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 radical-multiplication.

Question 1/4 Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

कौन सा कथन \(\sqrt{2}\cdot \sqrt{3}\) के बारे में सही है?

Which statement is correct about \(\sqrt{2}\cdot \sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

B. यह \(\sqrt{6}\) है और अपरिमेय हैIt is \(\sqrt{6}\) and irrational

Step 1

Concept

The product of radicals is \(\sqrt{2}\cdot \sqrt{3}=\sqrt{6}\).

Step 2

Why this answer is correct

Since (6) is not a perfect square \(\sqrt{6}\) is irrational.

Step 3

Exam Tip

In multiplication the numbers inside radicals multiply, not add. चरण 1: वर्गमूलों का गुणनफल \(\sqrt{2}\cdot \sqrt{3}=\sqrt{6}\) है। चरण 2: (6) पूर्ण वर्ग नहीं है इसलिए \(\sqrt{6}\) अपरिमेय है। चरण 3: गुणन में भीतर की संख्याएं गुणा होती हैं जोड़ नहीं।

Open Question Page
Ask Friends
Question 2/4 Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

(\sqrt{7}\(4+\sqrt{7}\)) का मान क्या है?

What is the value of (\sqrt{7}\(4+\sqrt{7}\))?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Apply distribution: \(\sqrt{7}\times4+\sqrt{7}\times\sqrt{7}\).

Step 2

Why this answer is correct

This becomes \(4\sqrt{7}+7\).

Step 3

Exam Tip

In such multiplication, remember \(\sqrt{7}\times\sqrt{7}=7\). चरण 1: वितरण नियम लगाएं: \(\sqrt{7}\times4+\sqrt{7}\times\sqrt{7}\)। चरण 2: यह \(4\sqrt{7}+7\) बनता है। चरण 3: समान वर्गमूलों के गुणन में \(\sqrt{7}\times\sqrt{7}=7\) याद रखें।

Open Question Page
Ask Friends
Question 3/4 Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

(\sqrt{5}\(3+\sqrt{5}\)) का मान क्या है?

What is the value of (\sqrt{5}\(3+\sqrt{5}\))?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{5}+5\)

Step 1

Concept

Apply distribution: \(\sqrt{5}\times3+\sqrt{5}\times\sqrt{5}\).

Step 2

Why this answer is correct

This becomes \(3\sqrt{5}+5\).

Step 3

Exam Tip

In such multiplication, remember \(\sqrt{5}\times\sqrt{5}=5\). चरण 1: वितरण नियम लगाएं: \(\sqrt{5}\times3+\sqrt{5}\times\sqrt{5}\)। चरण 2: यह \(3\sqrt{5}+5\) बनता है। चरण 3: समान वर्गमूलों के गुणन में \(\sqrt{5}\times\sqrt{5}=5\) याद रखें।

Open Question Page
Ask Friends
Question 4/4 Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

(\sqrt{3}\(2+\sqrt{3}\)) का मान क्या है?

What is the value of (\sqrt{3}\(2+\sqrt{3}\))?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Use distribution: \(\sqrt{3}\times2+\sqrt{3}\times\sqrt{3}\).

Step 2

Why this answer is correct

This becomes \(2\sqrt{3}+3\).

Step 3

Exam Tip

In radical multiplication, remember \(\sqrt{3}\times\sqrt{3}=3\). चरण 1: वितरण नियम लगाएं: \(\sqrt{3}\times2+\sqrt{3}\times\sqrt{3}\)। चरण 2: यह \(2\sqrt{3}+3\) बनता है। चरण 3: वर्गमूल वाले गुणन में \(\sqrt{3}\times\sqrt{3}=3\) याद रखें।

Open Question Page
Ask Friends
Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.