MHT CET Physics question

If two sources emit light waves of different amplitudes then in interference pattern [MHT-CET 2022]

(A)Brightness of fringes is less
(B)Fringes width will be less
(C)Fringes disappear after short time
(D)There is some intensity of light in the region of destructive interferenceCorrect

Answer: (D)

Solution

With unequal amplitudes , , so dark fringes are not completely dark; fringe width depends on

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Question ID VK-077488