Question

what are laws of refraction. what are the similarities between reflection and refraction. Is the angle of incidence equal to angle of refraction?

Answer 1

The incident ray, the refracted ray and the normal to the surface at the point of incidence all lie in one plane.

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.

The above law is called Snell's law after the scientist Willebrod Snellius who first formulated it

Both, Refection and refraction are the phenomena which occur with waves( light and sound)