Question

name them the change of path of light rays by the surface of the lens in different conditions

Answer 1

1

from rare to denser light ray bends towards normal

2

from denser to rare ray bends away from normal

3

if angle of incidence is 0 degree no deviation ocurrs

Answer 2

1. from rare to denser light ray bends towards normal
2. from denser to rare ray bends away from normal
3. if angle of incidence is 0 degree no deviation ocurrs