Light, How are Rainbows form.

Light, how are rainbows formed.

Rainbow is arch formed by light refracted by drops of water diffused in the air.
You can see it when you have sun behind your back and you look at the rain.
In the brightest or primary bow, often the only one seen, the colors are arranged with the red outside. Above the perfect bow is a secondary bow, in which the colors are arranged in reverse order; this bow is dimmer, because of a double reflection within the drops.
When the sunlight enters a raindrop it is refracted, or bent, by and reflected from the drop in such a way that the light appears as a spectrum of colors. The colors can be seen, however, only when the angle of reflection between the sun, the drop of water, and the observer's line of vision.

You can test it out actually ;

Take flat container, pour some water in it and place a mirror in the water (mirror has to be partly in the water, partly out of the water).

Now place the container in front of the window that the part of mirror (one of of the water) reflects sunlight towards the wall.

You can see a small rainbow on the wall under the reflected white light.

(see the picture above. )

Thankyou.

Done by, Nadhirah 2E3 :D

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