Question

As light travels from a rarer to a denser medium it will have ​

Answer 1

Answer:

As the light travell from rarer to denser it bents towards the normal.

(The bending occurs because the light travels more slowly in denser medium).

Answer 2

As light travels from a rarer to a denser medium it will have ​a decrease in its speed.

• When light travels from a rarer to a denser medium its speed will be decreased because the optical density of the denser medium is great than the optical density of the rarer medium.
• Optical density is the measure of the speed of light in a given medium.
• In the greater optical region the speed of light decreases and in the lower optical medium the speed of light increases.