Question

A pendulum makes 500oscillations in 100 seconds,find its time period

Answer 1

time period = no of oscillations / time taken

= 500/100

=5

Answer 2

No. of oscillations=500

Time taken=100 sec

frequency= no. of oscillation/time taken

=500/100

=5

Time period=1/frequency

=1/5

=0.2

Therefore, time period is 0.2 seconds

Hope it helps