In a single slit experiment, the width of the slit is doubled. Which one of the following statements is correct? (a) The intensity and width of the central maximum are unaffected. (b) The intensity remains same and angular width becomes half. (c) The intensity and angular width both are doubled. (d) The intensity increases by a factor 4 and the angular width decreases by a factor of 1/2.

Answer: (d). Central intensity ∝ a²: doubling a makes it 4 times. Angular width = (2λ)/(a): doubling a halves it. So the answer is (d).

In a single slit experiment, the width of the slit is doubled. Which… | MHT CET 2023 (9 May, Shift 1)

Q52MHT CET 2023 · 9 MAY · SHIFT 1Medium

Diffraction at a Single Slit

In a single slit experiment, the width of the slit is doubled. Which one of the following statements is correct?

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Answer: (d)