Q.

The critical angle for light going from medium X into medium Y isθ . The speed of light in medium X is v. the speed of light in medium Y is

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a

vcosθ

b

v/cosθ

c

vsinθ

d

v/sinθ

answer is D.

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Detailed Solution

Clearly, x is denser mediumNow, sinθsin900=1μX  Y =μY  X =vv'Or v'=vsinθ
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The critical angle for light going from medium X into medium Y isθ . The speed of light in medium X is v. the speed of light in medium Y is