Question

a raibow is the combined effect of the refraction, dispersion and total internal reflection of light . Prove the following statement

Answer 1

A rainbow is caused by combined effects of reflection, refraction, and dispersion of light. This is a natural climatic phenomenon, often observed after a shower of rain.

Sunlight while pass-through droplets of water produce a spectrum of light that appears in the sky. It takes the form of a circular arc with multiple colour.arc.

Rainbows produced by sunlight always found to arise opposite the sun in the sky. Although rainbow is formed in full circle in the sky, we normally see only an arc formed by illuminated droplets.

Answer 2

Rainbow is a beautiful natural phenomenon it is a combined effect of the number of natural processes it is the combined effect of different refraction and total internal reflection of light it can be seen mainly after rainfall small droplets of water act as small prisms when light rays from the sun enter this droplets it gets reflected and send a purse then there is internal reflection as shown in the figure and after that once again the light gets reflected while coming out of the droplet.

All these three processes together produce the rainbow.

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