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Question

It is given that the value of sinisinr when light enters from medium P to medium Q is less than 1.Then


A

P is optically denser than Q

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B

Q is optically denser than P

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C

P and Q have same optical density

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D

Not possible

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Solution

The correct option is A

P is optically denser than Q


(sin isin r) < 1 => sin i < sin r
i.e., angle of incidence < angle of refraction. It means it bends away from the normal. When light enters from denser to rarer medium, light bends away from normal.

Hence, medium P is optically denser than Q.


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