Question

state the laws of refraction of light . explain the terms absolute refraction index of a medium and write an expression of relate it with the speed of light in vacuum​

Answer 1

Answer:

Laws of Refraction. ... Laws of refraction state that: The incident ray, reflected ray and the normal, to the interface of any two given mediums; all lie in the same plane. The ratio of the sine of the angle of incidence and sine of the angle of refraction is constant.

Absolute refractive index of the medium is defined as the refractive index of that medium with respect to refractive index of vacuum i.e. ratio of refractive index of the given medium to that of vacuum. where v is the speed of light in that medium, c is the speed of light in vacuum.

Answer 2

Answer:

Law of refraction states that the incident ray the normal and the refracted ray all lie in the same plane.

the ratio of angle of incidence to angle of refraction is always constant.