Question

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

Answer 1

Answer:

LAWS OF REFRACTION

1. The incident ray, the refracted ray and the normal at the point of incidence, all lie in the same plane.
2. The ration of sine of angle of incidence to the sine of angle of refraction is constant for the pair of media.

ABSOLUTE REFRACTIVE INDEX

The refractive index of a medium is generally defined with respect to vacuum, and its called absolute refractive index.

Its denoted by μ.

RELATIONSHIP BETWEEN SPEED OF LIGHT IN VACUUM AND μ

μ = (Speed of light in vacuum) ÷ (Speed of light in that medium)