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Q.

Critical angle for light going from medium (i) to (ii) is θ. The speed of light in medium (i) is v then speed in medium (ii) is

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a

v(1−cosθ)

b

vsinθ

c

vcosθ

d

v(1−sinθ)

answer is B.

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Detailed Solution

2μ1=1sinθ⇒μ1μ2=1sinθ⇒v2v1=1sinθ⇒v2v=1sinθ ⇒v2=vsinθ
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