Question

Identify the phenomena of light involved in the formation of a rainbow.

A. reflection, refraction and dispersion.

B. refraction, dispersion and total internal reflection. 

C. dispersion, scattering and total internal reflection. 

D. refraction, dispersion and internal reflection.

Answer 1

A collection of suspended water droplets in the atmosphere serves as a refractor of light, the refraction occurs at the outer surface of drops. They also act as the small prism which scatters the white light and we see the seven colors.

On the inner surface, the internal refraction occurs. And the as shown below.