a 75 b 90 c 105 d 120 D A ray of light is incident on a

Last updated: 6/10/2023

a 75 b 90 c 105 d 120 D A ray of light is incident on a thick slab of glass of thickness t as shown in the figure The emergent ray is parallel to the incident ray but displaced sideways by a distance d If the angles are small then dis