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MHT CET 2026 (15 Apr, Shift 1) · Diffraction at a Single Slit

Diffraction at a Single Slit question from MHT CET 2026 (15 Apr, Shift 1)

Q4MHT CET 2026 · 15 APR · SHIFT 1Easy

Diffraction at a Single Slit

When the distance of separation between the slit and screen is doubled, the angular separation between fringes in single slit diffraction pattern experiment

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Answer: (c)

Angular positions of minima: $\sin\theta = \dfrac{n\lambda}{a}$ , so angular separation $\approx \dfrac{\lambda}{a}$ .
This has no $D$ in it; doubling $D$ only increases the linear separation.
So the answer is (c) remains same.

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