Important Class 8 of Exponents Questions and Answers Paper (For CBSE, ICSE, IAS, NET, NRA 2023)

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Question 1

Evaluate

(i)

(ii)

(iii)

Answer

As we know that

(i)

(ii)

(iii)

Question 2

Simplify and express the result in power notation with positive exponent.

(i)

(ii)

(iii)

Answer

i.

ii

Question 3

Find the value of.

(i)

(ii)

(iii)

Answer

(i)

ii.

iii.

as

Question4

Find the value of x here

Answer

Or

Question 5

Find the value of m for which

Answer

So

Question 6

Express the following numbers in standard form.

(i) 0.0000000015

(ii) 0.00000001425

(iii) 10200000000000000

Answer

(i) 0.0000000015

0.00000001425

10200000000000000

Question 7

Express the following numbers in usual form.

(i)

(ii)

(iii)

(iv)

Answer

(i)

(ii

(iii)

(iv)