Why do you see seven colours in a rainbow?

Answer 1

Those are the only ones that people talk about, because that's the longest list of

colors that a lot of people can remember. But the truth is that there are billions of

colors in the rainbow. A lot of them don't even have names because there are so

many. In fact, the best way to describe it is: ALL the colors are in the rainbow. If

it's something your eye can detect, then it's there.

Answer 2

A rainbow is formed when sunlight is refracted, or bent, as it passes through raindrops in the air. This bending of light causes the sunlight to split into its different colors, each color having a specific wavelength and appearing as distinct bands of light in the sky. The seven colors typically seen in a rainbow are red, orange, yellow, green, blue, indigo, and violet, which correspond to different wavelengths of light.