Question

What happens when a light ray is incident normally on one of the faces of a rectangular glass slab?

Answer 1

Hiii dear here is your answer


Since, the extent of bending of the ray of light after refraction at the opposite parallel faces of the rectangular glass slab is equal and opposite, so emergent ray is parallel to incident ray.


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Answer 2

Answer:

since the extent of bending og light rays

after refraction at the opposite parallel forces of the rectngular glasss slab is equal and oppsite so emergent ray is parallel to incident ray .

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