If Young's double slit experiment is performed in water (a) the fringe width will decrease (b) the fringe width will increase (c) the fringe width will remain unchanged (d) the fringe width first decreases and then increases

Answer: (a). In water λ' = (λ)/(μ) with μ > 1. β' = (λ D)/(μ d) = (β)/(μ), smaller than β. So the answer is (a) the fringe width will decrease.

If Young's double slit experiment is performed in water | MHT CET 2026 (14 May, Shift 2)

Q2MHT CET 2026 · 14 MAY · SHIFT 2Easy

YDSE: Film, Medium & Two Wavelengths

If Young's double slit experiment is performed in water

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Answer: (a)

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