Question:

In Young’s double slit experiment the Fringe width is 0.4 mm. if the whole apparatus is immeresed in water of refractive index 4 / 3 without changing its geometry the new Fringe width will be :

Updated On: Mar 12, 2025

0.53mm
0.4 mm
0.3 mm
540 μm

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The Correct Option is C

Solution and Explanation

The correct answer is (C): 0.3 mm

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