Asked by Ro

Why are there colors on a rainbow?
Answered by Damon
Because the various wavelengths of light coming from the sun and refracting toward your eyes through the wet air are bent through different angles.
Answered by Damon
Here is a more complete description:
https://www.physicsclassroom.com/class/refrn/Lesson-4/Rainbow-Formation
Answered by DrBob222
To add to Damon's great description, each water droplet in the air acts as a tiny prism.
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