Question

As we know rainbow is formed due to the three phenomenon in the raindrops that are dispersion , refraction and total internal reflection . so , which phenomenon occurs first and how ?

Answer 1

firstly occur refraction and dispersion

when sunlight enters in prism like water droplet it first refracts

Answer 2

$\huge\colorbox{purple}{Answer}$

Refraction, dispersion and internal reflection of sunlight are three phenomenon of light involved in formation of rainbow. It is formed due to dispersion of sunlight through water droplets.