Question

Write any two rules for the deviation of rays from one optical medium to another optical medium

Answer 1

•when light travels from denser to rarer medium,it bends away frm normal.
•When light travels from rarer to denser medium,it bends towards the normal.

Answer 2

Answer:

-when a ray of light travels from an optically less dense medium to an optically more dense medium,it bends towards the normal at the surface of separation of two media

-when a ray of light travels from an optically more dense medium to an optically less dense medium it bends away from the normal at the surface of separation of two media

-when a ray of light strikes the surface of separation of two media at an angle of 90 degree* it does not deviate from its path

Explanation:

(third point) the angle strikes the surface of separation normally*