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

Dispersion 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--rainbow ,. etc.

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^

Answer 2

(a). Scattering of white light into it component color(or into seven color) is called dispersion of light. eg. formation of rainbow.
When light ray strick particle present in air it get refracted and cause scattering of light. eg. Tyndall effect.