Question

Why the direction of incident ray and emergent ray are in different direction

Answer 1

Answer:

Emergent ray is parallel to the incident ray, after the refraction of Incident ray through a glass slab because the angle of incidence is equal to the angle of emergence and they are also the alternate interior angles.

Explanation:

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Answer 2

Answer:

cos due to different media ..

Explanation:

1. let's assume one situation
2. incident ray goes from rarer medium to denser medium ,it will bend towards the normal .
3. emergent ray is comming from denser goes to rarer medium , therefore it will bend away from the normal.
4. thus due to this difference in media these both have different directions...