Question

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?

1. Copy the diagram and complete the path of the ray PQ.
2. State two factors on which the angle of deviation depends.
   

Answer 1

1. 
   
2. Factors on which the angle of deviation depends are:
   1. Angle of incidence (i).
   2. Material of the prism (μ).
   3. Angle of the prism.
   4. the colour or wavelength (λ) of light used.
   5. refractive index.