5(iii)
A monochromatic ray of light is incident on an equilateral prism placed at minimum deviation position with an angle of incidence 45° as shown in the diagram.
(a) Copy the diagram and complete the path of the ray PQ.
(b) State two factors on which the angle of deviation depends.
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(a) In below figure, I is the position of source O when seen through the surface RS.
(b) The angle of deviation depends on the following factors :
- the angle of incidence (i),
- the material of prism (i.e., on refractive index μ).