Question

Q. A pendulum oscillates 40 times in 4 second
Find its time period & frequency.​

Answer 1

Answer:

Time period =

Number of oscillations in time t

t

=

40

4

=0.1 s

Frequency =

Time period

1

=10 Hz

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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.