Question

rainbow is an example for dispersion of sunlight .justify this statement by explaining with the help of a labelled diagram ,the formation of a rainbow in the sky .list two essential conditions for observing a rainbow. please can anyone answer , urgent ,please

Answer 1

Rainbow is formed due to the phenomenon of dispersion. it is a process in which single light is converted it into lines of seven colours
the main condition is that rainbow always form opposite to the sun

Answer 2

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Rainbow forms when sunlight hits the water droplets suspended in the atmosphere and undergoes total internal reflection. When the sunlight comes out of the drop it disperses, where the drop acts like a small prism. Hence, rainbow is an example of dispersion of sunlight.