Question

what is refraction of light and refraction of light.​

Answer 1

The bounce back of light off of a surface is called as reflection, where as when a ray of light passes through a medium to a rarer or denser medium it bends ,this is called as refraction

Answer 2

$\huge \mathfrak{Answer:-}$

$\large\underline\mathrm{Refraction \: of \: light:-}$

If any light ray incident in any medium and it propagates in any other medium then the process as the refraction of light.