Question

How should a ray of light be incident on a rectangular glass slab so that it comes out from the opposite side of the slab without being displaced?

Answer 1

Answer:

We want to know how a ray of light should be incident on a rectangular glass slab so that it comes out from the opposite side without being displaced. If the ray of light has to come out from the opposite side without being displaced, it should be incident on the glass slab exactly perpendicular to the surface.

Answer 2

Answer:

A ray of light be incident on a rectangular glass slab if it is placed perpendicular on the surface of the glass slab

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