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

Correct Answer is : cos2(δ∕2)

COMEDK Exam 2020 Solved Paper

Question : 58 of 180

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

cos‌δ
cos(δ∕2)
cos2(δ∕2)
cos2δ

Validate

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