Question

The velocity of light in air is 3 x 10^8 m/s and velocity while travelling in water is 2.4 x 10^8 m/s. Find refractive index of water.​

Answer 1

ANSWER:  

The refractive index of water, μ = speed of light in air / speed of light in water = 3 * $10^8$/ 2.4 * $10^8$ = 1.36

    From Brewster's Law:-

   

                 tan $i_p$  = $tan^ -1$(1.36)

                           =  53.74  degree