Question

a ray of light traveling in air is incident on a medium at an angle 45and refracted at an angle 30 in the medium what is the velocity of light in the medium​

Answer 1

Answer:

Speed of light in that medium is 2.12 × 10^8 m/s

Explanation:

sin i/ sin r

= sin 45/ sin 30

= (1/√2)/(1/2)

=2/√2

= 1.41 which is the refractive index

refractive index of medium x =

speed of light in air / speed of light in x

1.41 = 3 × 10^8/ x

x = 3 × 10^8 / 1.41

x = 2.12 × 10^8