rainbow and how does it appear?

We have never wondered how a rainbow is formed, have we?
A rainbow arises because of what A rainbow is associated with the refraction and reflection (to some extent, diffraction) of sunlight in water droplets suspended in air. These droplets deflect light of different colors in different ways, as a result what is white light decomposes into a spectrum.
https://i.imgur.com/unN3Zk9.jpg

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Reconnecting