Question

A pendulum complete 30 oscillations in 36 s what is its time period ​

Answer 1

Answer:

For 15 oscillation it takes 30 sec

For one oscillation Tme period = 30/15 = 2sec

Frequency = 1/ Time period

=1/2=0.5 Hz

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Answer 2

Answer:

a pendulum complete 15 oscillation in 30 s.

time period =30/15= 2s