Question

1) A pendulum oscillates 80 times in 4 sounds
kind its time period and frequency​

Answer 1

Answer:

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Answer 2

Answer:

number of oscillation in 4 secs =80

number of oscillation in 1 secs =80/4=20

frequency =20hz

Time period :1/frequency

1/20=(1*5)/(20*5)

=5/100=0.05

Time period :0.05 sec

frequency :20hz

I hope this will help you...