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MHT CET 2023 (11 May, Shift 1) · Diffraction at a Single Slit

Diffraction at a Single Slit question from MHT CET 2023 (11 May, Shift 1)

Q49MHT CET 2023 · 11 MAY · SHIFT 1Easy

Diffraction at a Single Slit

In the experiment of diffraction due to a single slit, if the slit width is decreased, the width of the central maximum

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Answer: (c)

Width of central maximum $= \dfrac{2D\lambda}{a} \propto \dfrac{1}{a}$ .
Decreasing $a$ increases the width.
So the answer is (c) increases.

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