Question

How a ray of light bends when passes from denser to rares

Answer 1

Explanation:

1. when light rays travel from air into glass or from air into water it bends towards normal this is because a the speed of light rays decrease while travelling from air into glass or water
2. when light rays travel from optically denser medium to rarer medium then they band away from the normal

Answer 2

Answer:

If a ray of light hits the surface of a sheet of glass, some light will be reflected by the surface of the glass. However, much of the light will pass through the glass, because glass is transparent.

Water affects light rays in a similar way. Some light will be reflected off the surface of the water, but much of the light will pass through the transparent water.

When a ray passes from air into glass the direction in which the light ray is travelling changes. The light ray appears to bend as it as it passes through the surface of the glass.