MHT CET 2023 Physics question

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

(A)increases with increase of slit width
(B)decreases with increase of slit widthCorrect
(C)decreases with decrease of slit width
(D)may increase or decrease with decrease of slit

Answer: (B)

Solution

For a single slit of width , the first minima occur at , so the angular width of the central maximum is . Hence the angular width is inversely proportional to the

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Question ID VK-095144