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Questions  

A progressive  wave y=Asin(kxωt)  is reflected by a rigid wall at x=0. Then the reflected wave can be represented by

a
y=Asin(kx+ωt)
b
y=Acos(kx+ωt)
c
y=−Asin(kx−ωt)
d
y=−Asin(kx+ωt)

detailed solution

Correct option is D

Direction of wave propagation will be reversed.Also, phase change of 1800 will occur.

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