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Q5. A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.

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Time Period is defined as the time taken to complete one oscillation.

\\Time \ taken \ to \ complete \ 40 \ oscillations\ = 4 \ seconds\\ Time \ taken \ to \ complete \ 1 \ oscillation\ = \ \frac{4}{40}\ seconds\ = \ 0.1 \ second\\

Frequency is defined as the number of oscillations per second.

\\Number \ of \ oscillations \ in \ 4 \ seconds \ = \ 40 \\ Number \ of \ oscillations \ in \ 1 \ second \ = \ \frac{40}{4} \ = \ 10\\ Frequency \ = \ 10 \ Hertz.

Posted by

Sayak

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Answer is it move 10 times in 0.1s

Posted by

Saumya Bisht

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