Question

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

Answer 1

Answer:

Given

Number of Oscillations, N=40

Time t=1min

Frequency f=

t

N

=

60

40

=0.667Hz

Time period,T=

f

1

=1.5sec

Hence, frequency is 0.667Hz and time period is 1.5sec

Explanation:

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Answer 2

Answer:

Given

Number of Oscillations, N=40

Time t=1min

Frequency f=  t/ N  =  60/ 40

​=0.667Hz

Time period,T= 1/f =1.5sec

Hence, frequency is 0.667Hz and time period is 1.5sec

Explanation: