MHT CET 2022 Physics question

A parallel beam of monochromatic light falls normally on single narrow slit. The angular width of the central maximum in the resulting diffraction pattern

(A)decreases with decrease of slitwidth.
(B)decreases with increase of slitwidthCorrect
(C)increases with increase of slitwidth
(D)may increase or decrease

Answer: (B)

Solution

For a single slit of width , the first minimum occurs at , so the angular width of the central maximum is . It is inversely proportional to the slit width: widening the slit makes the

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Question ID VK-096907