Question

What is Angle of Emergence and Lateral shift​

Answer 1

Lateral displacement :the perpendicular distance between the incident rah and the emergent ray is defined as lateral shift This shift depends upon the angle of incident the angle of refraction and thickness of the medium

Mathematically 6lateral shift is given by Slateral =tcosrsin(i-r)..

hope it helps you

Answer 2

$\large\tt\underline{\red{Answer :-}}$

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