Umakant biswal
Last Activity: 7 Years ago
dear udhai
1st law = The incident ray, the refracted ray and the normal to the surface at the point of incidence all lie in one plane.
2nd law = For any two given pair of media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant.
defination = change in the direction of wave propagation due to change in it transmission medium.
causes – the speed of light is diffrent in diffrent medium , so, it changes its path .
HOPE IT CLEARS
REGARDS