Question

when light ray coming from the rarer medium to denser medium , why light
changed it's direction ?​

Answer 1

Answer:

When light rays travel from air into glass or from air into water, it bends towards normal. This is because the speed of light rays decrease while travelling from air into glass or water.

Explanation:

.

.

.

.

hope it helps

please mark me as brainlist

Answer 2

Answer:

when light travel from rarer to denser medium , the one which travel at an angle will slow down its velocity and change it direction.