Question

If a medium has a critical angle for total internal

If c is critical angle then Sin c velocity of light in medium velocity of light in vacuum sin 90 v 3 108 v 3 108 1 v 3 108 ms

reflection from the medium to vacuum as 90°, what is the velocity of light in the medium? (Take c = 3.0 × 108 m/s)

A 3 × 10^2 m/s

B 3 × 10^3 m/s

C 3 × 10^5 m/s

D 3 × 10^8 m/s

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