Question

a pendulum oscillates 40 times in 4 seconds calculate its time period and frequency can we hear the sound produced by the oxidation of the pendulum give reason for your answer

Answer 1

frequency is number of oscillation per second

the pendulum oscillates 40 times in 4 seconds

this implies the pendulum oscillates 10 times in 1 sec

so its frequency is 10 hertz

time period(t)= 1/frequency

t = 1/10 = 0.1 sec

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