Question

does a rainbow from a raindrop only form when white light passes through it?​

Answer 1

Answer:

When light hits the rain at just the right angle, it is refracted through a raindrop and into our eyes, causing us to see a rainbow. ... Sunlight, or "white" light, is actually made up of continuous bands of different colored light--red, orange, yellow, green, blue, indigo and violet.

Explanation:

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Answer 2

A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths--or colors. When light exits the droplet, it makes a rainbow.