Question

name three phenomena of dispersion

Answer 1

The most familiar example of dispersion is probably a rainbow, in which dispersion causes the spatial separation of a white light into components of different wavelengths (different colors). However, dispersion also has an effect in many other circumstances: for example, group velocity dispersion (GVD) causes pulses to spread in optical fibers, degrading signals over long distances; also, a cancellation between group-velocity dispersion and nonlinear effects leads to soliton waves.

Answer 2

Hii

Three phenomenon of light responsible for formation of rainbow in the sky are :

1) Dispersion of sunlight by raindrops in the atmosphere.

2) Refraction of white light by different amounts due to which an arch of rainbow is formed.

3) Total internal reflection within the raindrop.

Hope it helps y