Question

A pendulum oscillates 40 times in 4 seconds find it's time period and frequency

Answer 1

Pendulum= oscillates/time

40 divided by 4 = 10Hz

Time taken 4/40= 0.1sec

Hope it helps you

Answer 2

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• Time Period

Time period = Time/No. of oscillations in time

→ Time period = 4/40

→ Time period = 0.1 sec

• Frequency

Frequency = 1/Time period

→ Frequency = 1/0.1

→ Frequency = 10 Hz

Hence, the time period is 0.1 sec & frequency is 10 Hz