Difference between Lateral shift and Normal shift ?
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ᏗᏁᏕᏇᏋᏒ:
- ❇️ When the light Ray is entering from a into the glass slab it moves towards the normal. Again when it is moving away from the glass slab into the air it moves towards the normal. ... The perpendicular distance between the two light rays within the glass slab is called lateral shift.
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☆ Lateral shift can be defined as the perpendicular distance of the incident ray and the emergent rays.
☆ Normal shift may be described as the apparent shifting of the position of object during refraction of light.
In both the shifts, the refractive index is the main factor of dependence.
Let us consider a light ray passing through a glass slab of certain thickness t. There is a change of the medium in this case twice. When the light Ray is entering from a into the glass slab it moves towards the normal. The perpendicular distance between the two light rays within the glass slab is called lateral shift.
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