Question

when do we observe the bright rainbow if light passes through water droplet ​

Answer 1

Answer:

To view a rainbow, your back must be to the sun as you look at an approximately 40 degree angle above ... But just exactly how do the droplets of water disperse and reflect the light?

Answer 2

If a ray of light passes through a water droplet we observe bright rainbow if it passes through the water droplets at a certain angle.

1) White light is made up of a combination of a number of lights which appear on a rainbow.

2) So, when a light passes through a water droplet, when the incidence angle is in such a manner that refraction of the light occurs, then we observe a bright rainbow.