Question

31) Draw the ray diagram when an oblique ray of light is incident on a glass slab & undergoes
refraction from air to glass & from glass to air. Mark the angle of incidence & angle of
refraction, and state the relation between them.​

Answer 1

Answer:

i is the angle of incidence and e is the angle of emergence .

i=e and r  1  =r  2

​  So, the incident ray and the emergent ray are parallel

Diagram:

Diagram is attached below