Question

Consider the path of a ray of light passing through a rectangular glass slab for different angles of incidence.
(i) Which one is greater: angle of incidence or angle of refraction?
(ii) What happens to the emergent angle on increasing the incident angle at air-glass interface?
(iii) State the conditions when no refraction occurs.
Explain

Answer 1

Answer:

i.)angle of refraction os greater

ii.)the emergent angle also increases

iii.)when the incident ray passes undeviated through the normal