Question

Name any two natural processes involved in formation of rainbow.

Hint:

N/A

Answer 1

The formation of a rainbow is a beautiful optical phenomenon that involves three main processes:

Refraction: As sunlight enters a water droplet, it slows down and bends. It refracts again when it leaves the droplet.

Dispersion: When the white sunlight enters the water droplet, it splits into its constituent colors (the spectrum). This happens because each color has a different wavelength and is refracted at a slightly different angle.

Total Internal Reflection: After entering the droplet and dispersing, the light hits the back surface of the droplet. It is reflected internally before exiting the front surface.