CBSE 2023 · Region 4 · Set 1 · Q6 · 1 mark
In a Young's double-slit experiment, the fringe width is found to be $\displaystyle \beta$. If the entire apparatus is immersed in a liquid of refractive index $\displaystyle \mu$, the new fringe width will be :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle \frac{\beta}{\mu}$
Wave OpticsInterference of Light Waves and Young’s ExperimentApplymcqmedium
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CBSE Class 12 Physics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.