Explain refraction due to rectangular glass slab. Also Explain lateral shift.
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Explain refraction due to rectangular glass slab.
Refraction through a rectangular glass slab and principle of reversibility of light: On entering the glass slab, it bends towards normal and travels along EF at an angle of refraction r. ... The refracted ray EF is incident on face SR at an angle of incidence r'.
Explain lateral shift.
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''.
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