what happens when entire young's double slit experiment is imagined to replace in water

Dear Kapil,

We know the width of the frindge in the young's double slit experiment is given by the formula λ*D/d

Where λ is the wave length of the light and D is the ditance of the slits from the screen and d is the seperation between the slits.

When we replace air with water which has refractive index μ(>1), the opyical distance between the screen and the slits become D/μ.

So, the frindge with decreases ultimately.

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