This set of Class 8 Maths Chapter 12 Multiple Choice Questions & Answers (MCQs) focuses on “Exponents and Powers”. These MCQs are created based on the latest CBSE syllabus and the NCERT curriculum, offering valuable assistance for exam preparation.
1. What is the multiplicative inverse of 10-3?
a) 100
b) -100
c) \(\frac{1}{1000}\)
d) 1000
View Answer
Explanation: Multiplicative inverse of an = \(\frac{1}{a^n}\)
⇒ Multiplicative inverse of 10-3 = 103 = 1000.
2. What is the value of 10-6?
a) -0.000010
b) -0.0000010
c) 0.000010
d) 0.0000010
View Answer
Explanation: a-m = \(\frac{1}{a^m}\)
⇒ 10-6 = 0.000010.
3. Find the value of 3-2.
a) \(\frac{1}{9}\)
b) –\(\frac{1}{9}\)
c) 8
d) \(\frac{1}{8}\)
View Answer
Explanation: a-m = \(\frac{1}{a^m}\)
⇒ 3-2 = \(\frac{1}{3^2} = \frac{1}{9}\).
4. Find the unknown value: \(\frac{1}{729}\) = 9-m.
a) -4
b) -3
c) 3
d) 4
View Answer
Explanation: \(\frac{1}{a^m}\) = a-m
⇒ \(\frac{1}{9^3}\) = 9-m.
⇒ 9-3 = 9-m
⇒ -m = -3
⇒ m = 3.
More MCQs on Class 8 Maths Chapter 12:
- Chapter 12 – Exponents and Powers MCQ (Set 2)
- Chapter 12 – Exponents and Powers MCQ (Set 3)
- Chapter 12 – Exponents and Powers MCQ (Set 4)
To practice all chapters and topics of class 8 Mathematics, here is complete set of 1000+ Multiple Choice Questions and Answers.
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