Two identical light waves, propagating in the same direction, have a phase difference d. After they superpose the intensity of
the resulting wave will be proportional to
(A) cos d (B) cos (d/2) (C) cos2 (d/2) (D) cos2d

Question

Saurabh Koranglekar · Answer

Vikas TU · Answer

Maximum intensity, I=4I0cos^2(δ/2) ⇒I∝cos^2(δ/2)................................................................

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Two identical light waves, propagating in the same direction, have a phase difference d. After they superpose the intensity of the resulting wave will be proportional to (A) cos d (B) cos (d/2) (C) cos2 (d/2) (D) cos2d

Two identical light waves, propagating in the same direction, have a phase difference d. After they superpose the intensity of
the resulting wave will be proportional to
(A) cos d (B) cos (d/2) (C) cos2 (d/2) (D) cos2d

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Two identical light waves, propagating in the same direction, have a phase difference d. After they superpose the intensity of the resulting wave will be proportional to (A) cos d (B) cos (d/2) (C) cos2 (d/2) (D) cos2d

Two identical light waves, propagating in the same direction, have a phase difference d. After they superpose the intensity of the resulting wave will be proportional to (A) cos d (B) cos (d/2) (C) cos2 (d/2) (D) cos2d

2 Answers

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Two identical light waves, propagating in the same direction, have a phase difference d. After they superpose the intensity of
the resulting wave will be proportional to
(A) cos d (B) cos (d/2) (C) cos2 (d/2) (D) cos2d