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Explain the formation of rainbow in the sky with the help of diagram. List the tree phenomena involved in proper sequence.

Asked by siddhikadilipdesai 24th February 2016, 6:25 PM
Answered by Expert


Rainbow is formed due to the dispersion of sunlight by raindrops suspended in air.


Water drops act like tiny prisms. These water drops refract the sunlight, disperse, then they reflect internally and then refract it again. This is how a rainbow is formed.In the formation of rainbow, when a ray of light falls on water drop, it undergoes refraction and dispersion to form a spectrum. Dispersion takes place inside the water droplets which further reflect internally, refract and then comes out as seven colours.Due to dispersion and internal reflection of light, different colors reach the observer's eye along different paths.

Answered by Expert 24th February 2016, 6:31 PM
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