If the critical angle for total internal reflection from a medium… - Vidyadip

Question

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

(a) 3 m/s

(b) 1.5 m/s

(c) 6 m/s

(d) m/s

✓

Answer

(b) 1.5 m/s

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