Question

What is a ray of light ?​

Answer 1

Answer:

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

Answer:

♡ᴀɴsᴡᴇʀ:-

The light travelling in any one direction in a straight line is called A ray of light. A group of light rays given out from a source is called a beam of light.