Exponents and Powers MCQ Questions and Answers for Practice

1. The value of 2⁵ is

1. 3
2. 10
3. 32
4. 7

2. The Base in the expression 10²⁴ is

1. 1
2. 10
3. 24

3. The value of 3⁰ is

1. 3
2. 1
3. None of these

4. Multiplicative inverse of 7^-2 is

1. 49
2. 5
3. 7
4. -14

5. Fill in the blank a^m × aⁿ = a........ where m and n are natural numbers:

1. mn
2. m + n
3. m - n
4. m/n

6. The exponential form of (1/8) × (3)^-3 is given by which of the following expression:

1. 6^-3
2. 2³
3. 3^-6
4. 5^-3

7. The value of (1/3)^-2 is equal to

1. 9
2. 1
3. -6
4. (1/3)

8. In exponential form 149,600,000,000 m is given by

1. 1.496 × 10¹¹ m
2. 1.496 × 10⁸ m
3. 14.96×10⁸ m
4. 14.96 × 10¹¹ m

9. In simplified form ( 3^-1 + 4^-1 + 5^-1 )⁰ is equals to

1. 12
2. -3
3. 12^-1
4. 1

10. The value of (2/3)^-2 is

1. (4/9)
2. (-2/9)
3. (9/4)

11. In standard form 21600000 is written as

1. 2.16 × 10⁷
2. 216 × 10⁷
3. 2.16 × 10⁵
4. 216 × 10⁴

12. Usual form of the expression 3 X 10-5 is given by

1. 3.0E-5
2. 3.0E-6
3. 30 X 10^-4
4. 0.03 X 10^-3

13. 1 micron is equals to

1. 1/10000 m
2. 10⁶ m
3. 10^-6 m
4. 10^-5 m

14. The approximate distance of moon from the earth is 384,467,000 m and in exponential form. This distance can be written as

1. 3.84,467 × 10⁸ m
2. 384,467 × 10^-8 m
3. 384,467 × 10^-9 m
4. 3.844,67 × 10^-13 m

15. 7 × 10^-5 m is the standard form of which of the following

1. 0.0007 m
2. 0.000007 m
3. 0.0000007 m
4. 0.00007 m