Question

What is the frequency of vibration if the the time taken by 500 vibration is 25 seconds

Answer 1

time taken for 500 vibration -------- 25 s

time taken for 1 vibration ------------- x s

thus,

x= 25/500 = 1/20= 0.05s

there fore, the frquency of vibration is

1/time taken= 1/0.05 = 100/5= 20 Hz

Answer 2

Answer:

total time taken 25sec

vibration 500

frequency =v/t

=20 hz