Question

a pendulum oscillates 40 time in 4 second find it time period and frequency

Answer 1

Heyyaa..✌️.
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Frequency of oscillations is defined as the number of oscillations of a vibrating body per second. It is given byy
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.✌️

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