Question

A simple pendulum take 42 sec to complete 20
oscillations. What is its time period?
O (a) 2.1s
O (b) 4.2s
O (c) 21s
O (d) 8.40s​

Answer 1

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2.1 seconds

Explanation:

Given

• Time taken =42 sec
• Number of oscillations =20

We know that

• Time period =Time Taken /Number of oscillations.

ie; 42/20= 2.1 sec

So,Therefore time period =2.1 seconds.

Answer 2

Answer:

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