Question

What is ray of light ??
Don't dare to spam in my question, Need prefect answer!!!

Answer 1

Explanation:

A light ray is a line (straight or curved) that is perpendicular to the light's wavefronts; its tangent is collinear with the wave vector. Light rays in homogeneous media are straight. They bend at the interface between two dissimilar media and may be curved in a medium in which the refractive index changes.

Answer 2

$\dag \sf \red{ \: \underline{Ray \: of \: light} \: } \dag\\ \sf{ The \: direction \: or \: path \: along \: which \: light \: energy} \\ \sf{ \: travels \: in \: a \: medium\: is \: called \: a \: ray \: of \: light.} \\ \sf{ It \: is \: represented \: by \: a \: straight \: line \: } \\ \sf{with \: an \: arrow\: marked \: on \: it.}$