The intensity ratio of the maxima and minima in an interference pattern produced by two coherent sources of light is 9 : 1. The intensities of the used light sources are in ratio
3 : 1
4 : 1
9 : 1
10 : 1
B.
4 : 1
Given:- The intensity ratio interference pattern produced by two coherent sources of light 9:1.
⇒ 3 ( a b ) = a + b
⇒ 3a 3b = a + b
⇒ 2a = 4b
⇒ a = 2b
∴
∴
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