Question

Q19(iv) On what factors does the lateral displacement of an emergent ray from a
glass slab depend?

(a) Thickness of glass slab.

(b) Angle of incidence.

(c) Both (a) and (b).

(d) Refractive index of air.

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Answer 1

Q19(iv) On what factors does the lateral displacement of an emergent ray from aglass slab depend?

(a) Thickness of glass slab.

(b) Angle of incidence.

(c) Both (a) and (b).(✔)

(d) Refractive index of air.

EXPLANATION⬇⬇⬇⬇

The factors that affect the lateral displacement of a light as it passes through a rectangular glass slab are:

(1) The thickness of the glass slab: The lateral displacement increases with the increase in the thickness of the glass slab..

(2) The angle of incidence: It increases with the increase in the angle of incidence.

(3) The refractive index of glass: The wavelength of light used. (It is more for violet light than for the red light.)