Question

Explain the lateral shift and also write it's formula ?

Answer 1

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HERE IS UR ANSWER.

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When a ray of light is incident obliquely on a parallel sided glass slab the emergent ray shifts laterally. The perpendicular distance between the direction of the incident ray and emergent ray is called lateral shift.


Lateral shift =tsin(i-r)/cosr =tsecr sin(i-r) where t is the thickness of the material and all other are having standar notation.

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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