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Wave of frequency 500 Hz has a phase ve...

Wave of frequency 500 Hz has a phase velocity `360 m//s`. The phase difference between two displacement at a certain point at time `10^(-3)s` apart will be

A

`pi` rad

B

`(pi)/(2)` rad

C

`(pi)/(4)` rad

D

`2pi` rad

Text Solution

Verified by Experts

The correct Answer is:
A
`Delta x = ct " "….(i)`
`therefore" " Delta phi = (2pi)/(lambda) Delta x = (2pi)/(c//f)Deltax`
`= (2pict)/(c//f)=2pi ft` [from Eq. (i)]
`= 2pi xx 500 xx 10^(-3)`
`pi` rad
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