Question

how do you appreciate the role of Fermat principle in​

Answer 1

Answer:

It states that light chooses the quickest path to travel which takes shortest time to travel. When light ray travels from rarer medium(speed of light is more)to denser medium(speed of light is less)then light ray bends towards the normal

Explanation:

Answer 2

Answer:

It states that light chooses the quickest path to travel which takes shortest time to travel. When light ray travels from rarer medium(speed of light is more)to denser medium(speed of light is less)then light ray bends towards the normal.