Question

What do you understand by deviation produced by the prism

Answer 1

When white light incident on the prism which includes seven colors, rays of different colors are deviate (emerged out ) by the prism through different angles and travel in different directions. This is the deviation of different colors through prism.

Answer 2

In a prism the ray of light suffers refraction at two faces. The prism produces a deviation at the first surface and another deviation at the second surface. Thus a prism produces a deviation in the path of light.

The value of the angle of deviation (or the deviation produced by a prism) depends on the following four factors:

(a) the angle of incidence.

(b) the material of prism.

(c) the angle of prism.

(d) The colour of light used.