$$The velocity of light in two media A and B are 2x10^8 m/s and 2.5x10^8 m/s. The critical angle for light going from A to B is:$$

Question

Accepted Answer

A. sin^-1(0.8)

Answer

B. sin^-1(1.25)

Answer

C. sin^-1(0.5)

Answer

D. 45 degrees

The velocity of light in two media A and B are 2x10^8 m/s and 2.5x10^8 m/s. The critical angle for light going from A to B is: