Formation of rainbow.

The Project

Rainbow is a beautiful natural phenomenon. it is the combined effect of number of natural processes that means it is the combined effect of dispersion ,refraction and total internal reflection of light. it can be seen mainly after a rainfall. small droplets of water acts as a small prisms. when light rays from the sun enter these droplets.it gets refracted and disperse then there is a internal reflection and after that once again the light gets refracted while coming out of the droplet all these three processes together produce the rainbow.

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