Question

A pendulum takes 25 seconds to complete 20 oscillations. What is its time period. ( Answer is 1.25 s)​

Answer 1

Explanation:

Time for 20 oscillations=25 secs

Then time for 1 oscillation=(25/20)secs

= (5/4)secs

= 1.25 secs

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Answer 2

The time taken to complete 20 oscillations in 25 seconds is known as the time period of that pendulum.