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Question

Assertion :The light travelling from air to glass can suffer total internal reflection Reason: Air is denser than glass.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution

The correct option is D Both Assertion and Reason are incorrect
Only a ray travelling from denser to rarer medium will go through total internal reflection. Air is rare than glass.
sinC=n1n2 , where C is critical angle and n2 is refractive index for denser medium and n1 is of rarer medium.
Both Assertion and Reason are incorrect..

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