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Two waves are given byy(1) = a sin (omeg...

Two waves are given by`y_(1) = a sin (omega t - kx)` and `y_(2) = a cos (omega t - kx)`. The phase difference between the two waves is

A

`(pi)/(4)`

B

`pi`

C

`(pi)/(8)`

D

`(pi)/(2)`

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The correct Answer is:
D
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