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Maths Power Play - Chapter 2 Class 8 (Ganita Prakash) MCQ and Assertion Questions

10 Question MCQ (including Assertion) · Class 8 · Maths · CBSE

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Chapter 2 Class 8 - Power Play (Ganita Prakash) | 10 questions | about 8 minutes

Practise Power Play - Chapter 2 Class 8 (Ganita Prakash) with Teachoo's 10 Question MCQ (including Assertion) (Class 8 · Maths · CBSE). Practise these questions in a free interactive quiz with answer feedback.

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Question 1 of 10
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Question 1 of 10
What is the expanded form of 172 using powers of 10?
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Question 2 of 10
Assertion (A): \( 2^{-4} \) is a negative number.
Reason (R): A negative exponent indicates the reciprocal of the base raised to a positive power: \( n^{-a} = \frac{1}{n^a} \).
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Question 3 of 10
Assertion (A): The expression \( \frac{4^7}{4^{-2}} \) simplifies to \( 4^9 \).
Reason (R): When dividing powers with the same base, you subtract the exponents: \( n^a \div n^b = n^{a-b} \).
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Question 4 of 10
Simplify \( m^5 n^{12} (mn)^9 \).
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Question 5 of 10
A safe is secured with a 5-digit password, using digits from 0 to 9. How many possible passwords exist?
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Question 6 of 10
Which of the following is equivalent to \( (13^{-2})^{-3} \)?
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Question 7 of 10
Evaluate \( (-3)^2 \times (-5)^2 \).
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Question 8 of 10
How many times larger than \( 4^{-2} \) is \( 4^2 \)?
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Question 9 of 10
Assertion (A): When a paper is folded 46 times, its thickness increases linearly.
Reason (R): Folding a paper in half doubles its thickness with every fold, which represents multiplicative or exponential growth.
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Question 10 of 10
If a person drinks one glass of water every 10 seconds, how long would it take to finish \( 2 \times 10^{25} \) drops of water? (Assume 1 glass = \( 3.2 \times 10^3 \) drops).
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This 10 Question MCQ (including Assertion) covers Power Play - Chapter 2 Class 8 (Ganita Prakash) for Class 8 · Maths · CBSE. Practise the questions in the interactive quiz and check your answers.

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