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A sound wave y=A0 sin (omegat-kx) is ref...

A sound wave y=`A_0 sin (omegat-kx)` is reflected from a rigid wall with 64% of its ampltitude. The equation of the reflected wave is

A

`y=frac(64)(100) A_(0) sin (omegat+kx)`

B

`y=-frac(64)(100) A_(0) sin (omegat-kx)`

C

`y=-frac(64)(100) A_(0) sin (omegat+kx)`

D

`y=frac(64)(100) A_(0) cos (omegat-kx)`

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