Question

A simple pendulum 40 oscillations in one minute find its time period

Answer 1

frequency=40/60
time period=1/frequency=3/2

Answer 2

Hey....
Here is ur answer......
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Time taken to complete 40 oscillation is 60sec.
Time taken to complete 1 oscillation is 40\60s.
=2\3s
Time period of pendulum is time taken to complete 1 oscillation....
Therefore , Time taken of pendulum is 2\3 s.
Time period is 2\3 sec.