Question

Define heat.write the​

Answer 1

Answer:

Refractive Index (Index of Refraction) is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density. Laws of refraction state that:

a) The incident ray, reflected ray and the normal, to the interface of any two given mediums; all lie in the same plane.

b) The ratio of the sine of the angle of incidence and sine of the angle of refraction is constant.