Question

A simple pendulum completes 40 oscillations in one minute. Find its (a) frequency, (b) time period.

Answer 1

(a) No. of oscillations = 40

Time taken = 60 s

So, frequency = No. of oscillations in 1 s = 40/60 = 0.67 Hz

(b) Time period = 1/Frequency = 1/0.67=1.5 s