Question

a) State the condition under which a light ray passes undeviated through a lens.

b) For the same angle of incidence of 45°,the angle of refraction in three transparent media A,B,C are 25°, 30° and 35° respectively. In which medium is the speed of light minimum and in which medium it is maximum?

c) What are the two factors on which lateral displacement of an emergent ray from a

glass slab depends ?​

Answer 1

Answer:

a) at optical center

Explanation:

b) the speed of light is minimum in c

the speed of light is maximum in A as it has less refractive index in compared to c

c) thickness and density of glass slab