Question

a rainbow is formed due to​

Answer 1

Answer:

After rain, when water particles remain at the atmosphere and the sun also present in the sky then the sun ray pass through water particles and scattering of light occurs..

Thus we see a rainbow.

Answer 2

A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.

In simple words:-

Rainbows are formed when light shines through water, like when the sun shines through the rain. This light is bent and reflected, like a reflection in a mirror, and this causes all of the amazing colors that you see.

Rainbows normally appear from the rain, but they can happen wherever light is being bent inside of water droplets. Rainbows can be seen in mist, fog, spray, and dew.

And you should know that rainbow has seven colours ( I know that you know)