Why is rainbow usually seen after heavy rainfall

1.	Why is rainbow usually seen after heavy rainfall
Answer» Rainbows are caused when rays of light from the sun hit water droplets which reflect some of the light back. The water droplets are usually rain drops, but could also be spray from a waterfall, a fountain, or even fog. To see a rainbow, you must have the sun shining behind you and the water droplets in front of you. Sunlight is made up of a spectrum of different colours that look white when we see them all mixed together. These colours get reflected by slightly different angles inside the raindrop, so they get spread out. This is why we see the familiar colours of the rainbow.

Answer»

Rainbows are caused when rays of light from the sun hit water droplets which reflect some of the light back. The water droplets are usually rain drops, but could also be spray from a waterfall, a fountain, or even fog. To see a rainbow, you must have the sun shining behind you and the water droplets in front of you.

Sunlight is made up of a spectrum of different colours that look white when we see them all mixed together. These colours get reflected by slightly different angles inside the raindrop, so they get spread out. This is why we see the familiar colours of the rainbow.

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