Question

Distinguish between angular dispersion and dispersive power. for a prism of angle A = 60°,
the angle of minimum deviation is also A. Calculate its refractive index.

Answer 1

Explanation:

The angular dispersion is defined as angle between the two extreme colours of light . Dispersive power of a prism is defined as the ratio of angular dispersion to the deviation of mean colour.

Answer 2

Answer:

The angular dispersion is defined as angle between the two extreme colours of light . Dispersive power of a prism is defined as the ratio of angular dispersion to the deviation of mean colour.