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Question

A light ray is passing through the mediums U, V, W, and X. In which medium will the refractive index be maximum?

A
U
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B
V
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C
W
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D
X
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Solution

The correct option is B V
When light passes from medium U to medium V, it bends toward the normal. Therefore, the optical density of V is greater than U.
V > U
Using the same logic,
V > W and W > X
V > U, W, X
The optical density of medium V is the highest. Therefore, the refractive index of medium V is the highest.

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