The intensity ratio of two coherent sources of light is P . They are interfering in the same region and produce an interference pattern. Then the fringe visibility is

Question

The intensity ratio of two coherent sources of light is P . They are interfering in the same region and produce an interference pattern. Then the fringe visibility is, 1 + P 2 P, 2 P 1 + P, P 1 + P, 2 P 1 + P

MARKS App · Accepted Answer

Visibility, V = I m a x - I m i n I m a x + I m i n = 2 I 1 I 2 I 1 + I 2 = 2 I 1 I 2 I 1 I 2 + 1 = 2 P P + 1

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