Theequation ofa simple harmonic motion is pi=0.34cos(3000t+0.74) wherex and t are in mm and s respectively. The frequency of the motion is :

Theequation ofa simple harmonic motion is pi=0.34cos(3000t+0.74) where

1.	Theequation ofa simple harmonic motion is pi=0.34cos(3000t+0.74) wherex and t are in mm and s respectively. The frequency of the motion is :
Answer» 3000 `0.74//2pi` `3000/2pi` `3000//pi`. SOLUTION :`x=0.34cos(3000t+0.74)` Comparing it with `x=r cos (omega t+phi)` We have `omega=300 s^(-1):.v=(omega)/(2pi)=(3000)/(2pi)` Hz Correct choice is ( C ).

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Theequation ofa simple harmonic motion is pi=0.34cos(3000t+0.74) wherex and t are in mm and s respectively. The frequency of the motion is :

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