Question

Name the factors on which angle of deviation depends.

Answer 1

Angle of deviation:

It is the angle that the emergent ray makes with the incident ray.

$\angle \mathrm{D}=\angle \mathrm{i}+\angle \mathrm{e}-\angle \mathrm{A}$, where

$\mathrm{D}=$angle of deviation.

$\mathrm{i}=$ angle of prism

$\mathrm{e}=$angle of emergent

$\mathrm{A}=$ prism angle

As the angle of emergence depends upon the refractive index of the medium and the wavelength of the incident ray thus,

The angle of deviation depends on four factors:

1. Angle of incidence $\left(\mathrm{i}\right)$
2. Refractive index $\left(\mathrm{\mu }\right)$
3. Wavelength of light $\left(\mathrm{\lambda }\right)$
4. Angle of prism $\left(\mathrm{A}\right)$