Question

Light enters from air to glass having refractive index 1 .50. what is the speed of light in the glass ? the speed of light in vaccum is 3×100000000ms

Answer 1

Answer:

ri of glass/ri of air = velocity in air/velocity in glass

1.5/1= 3×10^8/v in glass

v in glass = 3×10^8/1.5= 1.5×10^8