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  4. If the Young's double slit experimental set up is immersed in a liquid of refractive index μ, the fringe width of the interference pattern observed is β. When the experiment is performed in air medium with the same experimental set up, the fringe width of the pattern will be

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Q. If the Young's double slit experimental set up is immersed in a liquid of refractive index $\mu$, the fringe width of the interference pattern observed is $\beta$. When the experiment is performed in air medium with the same experimental set up, the fringe width of the pattern will be

KEAMKEAM 2022

Solution:

Correct answer is (d) $\mu \beta$