how do rainbows stay for so long if the rain had stopped and more importantly how do they happen if the drop fall

Question

how do rainbows stay for so long if the rain had stopped and more importantly how do they happen if the drop fall

In: Chemistry

Answer 1

It’s not raining where you are, but it’s still raining in the direction where you see the rainbow. It always needs raindrops to keep refracting the sun’s light.

Also, remember that there’s more than one raindrop there. You have countless raindrops, all falling at different times. You won’t see a rainbow from just one raindrop. At best, you’d see a colourful flash, so long as you happen to be at the right angle. But, when you have a million raindrops, each refracting the light from a different direction, it will all combine into the rainbow that you see.