Question

define rainbow formation
plzzz tell fast​

Answer 1

Here is your answer ⤵⤵⤵

A rainbow is produced by the dispersion of white sunlight by raindrops in the atmosphere. Each raindrop acts as a tiny glass prism splitting the sunlight into a spectrum.

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Answer 2

after heavy rain when sunrises then water molecules present in air and the sun rays are white in colour when this rays pass through water molecules then this molecules act as prism and transfer this white light into colourful light called rainbow and rainbow always forms in opporsite side of sunlight

in this way rainbow form

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