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A progressive wave travelling along the ...

A progressive wave travelling along the positive x-direction is represented by `y(x, t)=Asin (kx-omegat+phi)`. Its snapshot at `t = 0` is given in the figure.
For this wave, the phase is:

A

`-(pi)/(2)`

B

`(pi)/(2)`

C

`pi`

D

0

Text Solution

Verified by Experts

The correct Answer is:
C
`y=Asin(kx-omegat+phi)`
`V_(p)=-Aomega cos (kx-omegat+phi)`
At `t=0, x=0," "V_(p)=-Aomega cos phi`
By diagram
`V_(p)=+ve," "cos phi=-ve," "phi=pi`
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