When light passes through a rectangular glass slab, the emergent ray is:

Question

Accepted Answer

A. Parallel to the incident ray but laterally shifted (no angular deviation)

For a **rectangular slab** with parallel sides: refraction at the two interfaces (air-glass, glass-air) gives **emergent ray parallel to the incident ray** — no angular deviation, only **lateral shift** equal to t·sin(i − r)/cos(r).

Answer

Perpendicular to the incident ray

Answer

Deviated by 90°

Answer

Bent at the same angle as the incident ray

When light passes through a rectangular glass slab, the emergent ray is:

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