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Two identical light waves, propagating i...

Two identical light waves, propagating in the same direction , have a phase difference `delta`, after they superpose, the intensity of the resulting wave will be proportional to

A

`cos delta`

B

`cos(delta/2)`

C

`cos^2(delta/2)`

D

`cos^2 delta`

Text Solution

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The correct Answer is:
C
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