Question

a pendulum oscillations 3600 times in 3 minutes. find its frequency and time period .

Answer 1

It's frequency = 20 Hz = number of oscillations / per second = 3600/ 3×60 s
It's time period = 0.05s = 1/ frequency of pendulum = 1/20

hope this ans will help you

Answer 2

No. of oscillations = 3600

time taken = 3 min.

= 3*60 sec

= 180 sec

Time period = 180/360 sec

= 1/20 sec

Frequency = 1 / time period

= 1/1/20 Hz

=1*20/1 Hz

= 20 Hz