Question

DEVIATION PRODUCED BY A TRIANGULAR PRISM [Explanation]

Answer 1

Answer:

Deviation produced by a triangular prism

The angle between the refracting surfaces is the angle of the prism or refracting angle. ... When a light ray enters one refracting surface of the prism, it bends towards the normal and when it emerges out of the other refracting surface it bends away from the normal.

Answer 2

Question :-

Deviation produced by a triangular prism.

Explanation :-

This phenomenon can be observed in a lab environment using a triangular glass prism. A prism is a solid structure having three rectangular and two triangular surfaces. Any two rectangular faces are the refracting surfaces and the third one is the base. The angle between the refracting surfaces is the angle of the prism or refracting angle. The edge formed by the two refracting surfaces is the refracting edge as shown in the diagram. When a light ray enters one refracting surface of the prism, it bends towards the normal and when it emerges out of the other refracting surface it bends away from the normal. The angle between the incident ray and the emergent ray is the angle of deviation.

Example :-

∠i + ∠e = ∠A + ∠d

A is the angle of the prism

d is the angle of deviation

The total angle of deviation δ depends on,

∆ The angle of incidence at the first surface (i).

∆ The angle of the prism (A).

∆ The refractive index of the material of the prism.