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0 votes
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in Physics by (38.4k points)

If the critical angle for total internal reflection from a medium to vacuum is 30°, then velocity of light in the medium is

(A) 6 x 108 m/s

(B) 3 x 108 m/s

(C) 2 x 108 m/s

(D) 1.5 x 108 m/s

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1 Answer

+1 vote
by (40.3k points)

Correct option is (D) 1.5 x 108 m/s

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