Question

Draw the ray diagram for the following:
a) Water to sapphire
b) Sapphire to water

Answer 1

Given :
Refractive index of water is 1.33
Refractive index of Sapphire is 1.77
So, water is rarer medium and Sapphire is denser medium
case1]
When light travels from rarer medium water to denser medium sapphire , it bends towards normal.

Refer the first attachment.

case 2]
when light travels from sapphire to water [ denser to rarer]. it moves away from the normal.
Refer the attachment .