ISC (Science) ISC Class 12 - CISCE Question Bank Solutions for Physics (Theory)

The refractive indices of material for red, violet and yellow colour light are 1.52, 1.62 and 1.59 respectively.
Calculate the dispersive power of the material. If the mean deviation is 40°. What will be the angular dispersion produced by a prism of this material?

Prove that in case of a prism, i + e = A + δ, where the symbols have their usual meanings.

For any prism, obtain a relation between the angle of the prism (A), the angle of minimum deviation (δ_m) and the refractive index of its material (μ or n).

When a ray of white light is incident obliquely on the first surface of a prism, then ______.

What is meant by a thin prism?

1. A virologist studies details of a virus with the help of an instrument. Name the instrument used by him.
2. Draw a labelled ray diagram of an image formed by this instrument, assuming
   1. a small upright object.
   2. image lies at least distance of distinct vision.