Question

A particle in a medium completes 50 vibration in 2.5sec.The frequency of Wave is:
a,125Hz b,100Hz c,20Hz d,50Hz

Answer 1

Answer:

εηηο❤

_______________

As we know the formula of frequency is

frequency =No.of vibrations /time taken

=>50/2.5

=>20 hetrz

hope helps❤

Answer 2

Frequency = total vibration /total time taken

so frequency = 50/2.5= 20HZ