4. Light Refraction
Law Of Refraction Of Light
Law Of Refraction Of Light First Law :
The incident ray, the normal to the transparent surface at the point of incidence and the refracted ray, all lie in one and the same plane. Second Law :
The ratio of sine of angle of incidence to the sine of the angle of refraction is constant and is called refractive index of the second medium with respect to the first medium.