MHT CET Physics question

In a Young's double slit experiment, the source is white light. One of the holes is covered by a red filter and another by a blue filter. In this case,

(A)there should be no interference fringeCorrect
(B)there should be an interference pattern for red mixing with one for blue
(C)there should be alternate interference patterns of red and blue
(D)None of the above

Answer: (A)

Solution

The two beams have different wavelengths (different frequencies), so they are not coherent and no stable interference

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Question ID VK-077336