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A wave representing by the equation y = ...

A wave representing by the equation `y = a cos(kx - omegat)` is suerposed with another wave to form a stationary wave such that point `x = 0` is a node. The equation for the other wave is

A

`y=a sin (kx + omega t)`

B

`y=-a cos (kx + omega t)`

C

`y= -a cos (kx -omega t)`

D

`y= -a sin (kx -omega t)`

Text Solution

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The correct Answer is:
B
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