" 1.What is Refractive index? "

The polarising angle of a medium is 60^@ . What is refractive index of the medium?

Define Snell's law. What is refractive index? Write its mathematical formula.

(a) What is the speed of light in water of refractive index 4//3 ? (b) Light travels in a medium with a velocity of 2xx10^(8)m//s . What is refractive index of the medium?

If angle of incidence and angle of refraction be 45^@ and 30^@ respectively. What is refractive index of water is

The critical angle for diamond is 30°. What is its refractive index?