Question

Explain the formation of rainbow

Answer 1

A rainbow is a natural spectrum of sunlight in the form of bows appearing in the sky when the sun shines on rain drops.

It is combined result of reflection, refraction and dispersion of sunlight from water droplets, in atmosphere.

Always it formed in the direction opposite to the sun.

To see a rainbow, the sun must behind us and the water droplets falls infront of us.

When a sunlight enters into a spherical rain¬drop, it is refracted and dispersed. The different colours of light bent in different angles.

When different colours of light fall on the back inner surface of drop, it (water drop) reflects (different colours of light) internally (total internal reflection).

The water drops again refracts the different colours, when it comes out from the raindrop.

After leaving this different colours from the raindrop as rainbow, reach our eye. Thus, we see a rainbow.

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Answer 2

hey friend here is the answer
After a rain showers tere are tiny
molecules of water presented in
the atmosphere. When sunlight
passes through these tiny water
droplets, refraction takes place
and it leads toe formation of a
rainbow. Here, the water drops
acts as a prism in which the sunlight
will pass through it.
As the sunlight is white in colour
it will split up into 7 different colours namely
Violet, Indigo, blue,green, yellow, orange
and red. This is the formation of a rainbow. It is also called
as "VIBGYOR"......

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