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MHT CET Physics question

PhysicsWave OpticsMHT CET

In Young's double slit experiment, the angular width of a fringe is found to be on screen placed 1 m away. The wavelength of light used is 600 nm. If the entire apparatus is immersed in water of refractive index 4/3, the angular width of the fringe will be [MHT-CET 2022]

Answer: (C)

Solution

Angular fringe width falls by the factor in water:

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Question ID VK-077461