Question

explain refraction of light briefly​

Answer 1

$\textbf{Refraction}$:

The bending of light rays when they passes obliquely from one medium to another medium is called refraction of light.

$\textbf{Causes}$:

1. Change in medium

2. Different Optical density of different mediums.

Answer 2

snell's law also known as snell-descarates and the law of refraction is a formula used to describe the relationship between the angles of incidence and refraction ,when referring to light or other waves passing through boundary between two different isotropic media such as water glass or air