Have you ever seen rainbow? it is very beautiful, isn't it? Yes. Sometimes, rainbow appears and shows its beauty after falling rain.Its exhibits the spectrum colour. It is usually seen in the opposite to the sun at the close of shower. How does the sun affect in the existence of the rainbow? Here the story goes.
First, there must be rain. But,wait,rain must be falling in one part of the sky and the sun must be shinning form behind.
After the rain, sun light enters the raindrop and the various wavelength of visible llight, representing different colour.
The light then begins to slow and bends.Violet light bends the most and the red light the least.Must of people have seen a primary rainbow. It has on the outside arc; the colours of secondary colours are reversed. :)
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