Question

an pendulum oscillates 40 times in 4 seconds. find its time period and frequency

Answer 1

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Frequency of oscillations is defined as the number of oscillations of a vibrating body per second. It is given by
Frequency = (Number of Oscillations)/Time = 40/4 = 10 Hz
The time required to complete one oscillation is known as time period. It is given by the inverse of the frequency.
Time period = 1/(Frequency of Oscillation) = 1/10 = 0.1 sec.
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Answer 2

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