Question

What is the natural effect of dispersion of light?​

Answer 1

Answer:

The most commonly seen consequence of dispersion in optics is the separation of white light into a color spectrum by a prism. From Snell's law it can be seen that the angle of refraction of light in a prism depends on the refractive index of the prism material.

Answer 2

Answer:

The dispersion of light is the principle underlying in the formation of the rainbow. A rainbow is formed when white light is dispersed naturally. The rain drops act as dispersers while the Sunlight fall on them. We see the spectrum (dispersed band of seven colours) as a streak of rainbow across the sky.