Question

(a)define Dispersion of light. how is the scattering of light different from dispersion ?give one example of natural phenomena based on each of these.(b) a beam of light consisting of red ,blue and yellow is incident of the prisms as shown below. complete the diagram to show refracted and emergent Ray.

Answer 1

ispersion of Light’ can be defined as the splitting of white light when it passes through a glass prism into its constituent spectrum of colors (i.e. violet, indigo, blue, green, yellow, orange and red).
Example--Formation of rainbow.

A part of light gets absorbed by the particles of any medium when it travels from one medium to another medium is called scattering of light.
Example-- tyndall effect , sky appears blue..