Brief introduction of irrational numbers

Q.

Which one of the following is not a rational number?

1. $\sqrt{2}$

2. $0$

3. $\sqrt{4}$

4. $\sqrt{16}$

Q. Multiplication of irrational numbers always gives an irrational number.

1. True
2. False

Q. Which of the following is an irrational number ?

1. $\frac{8}{2}$
2. 9
3. 1.5
4. $\sqrt{2}$

Q.

The product of two irrational numbers is an irrational number

1. True
2. False

Q.

A circle has an integral radius of 5 cm. What is the nature of its perimeter?

1. Irrational

2. Rational

3. Integer

4. Can't say

Q. Classify the following numbers as rational or irrational.
$\sqrt{3}+\sqrt{2}$

Q.

Express each one of the following with rational denominator:

$\frac{2}{\sqrt{7}}$

Q. Upon adding two irrational numbers we get ___________ number.

1. rational
2. integer
3. rational or irrational
4. irrational

Q. Upon adding two irrational numbers we get ___________ number.

1. integer
2. irrational
3. rational
4. rational or irrational

Q. Upon adding two irrational numbers we get ___________ number.

1. rational or irrational
2. rational
3. irrational
4. integer

Q. Upon adding two irrational numbers we get ___________ number.

1. rational
2. irrational
3. rational or irrational
4. integer

Q. Upon adding two irrational numbers we get ___________ number.

1. integer
2. rational or irrational
3. irrational
4. rational

Q. Upon adding two irrational numbers we get ___________ number.

1. rational
2. rational or irrational
3. irrational
4. integer

Q. Upon adding two irrational numbers we get ___________ number.

1. integer
2. rational
3. irrational
4. rational or irrational

Q. Upon adding two irrational numbers we get ___________ number.

1. irrational
2. integer
3. rational
4. rational or irrational