Question

what is lateral shift?what are the factors on which it depend on?

Answer 1

Lateral displacement refers to the mechanism in which light changes its path when it travels from one medium to the another. It depends upon ---

1. the thickness of the glass slab
2. the angle of incidence
3. the angle of refraction 
4. the refraction index.

Answer 2

$\underline \bold {Answer}$

When a denser medium is kept between two parallel faces inside a rare medium and a ray falls upon one of the two parallel faces reflects into the denser medium and comes out of another surface becoming parallel to the incident ray.

In the successive reflection the deviation at first surface is reversed at second surface but the emergent ray deviates literally.

The distance to what an emergent Ray devited from the direction of incident ray when suffers refraction at two parallel surfaces is called as lateral deviation/ displacement.

The lateral displacement/deviation increase with the increase in

• thickness

• angle of incident

• optical density