In the formation of primary rainbow, the sunlight rays emerge at minimum deviation from rain- drop after

What are the steps for the formation of a primary rainbow ?

Draw a ray diagram to show the refraction of a monochromatic ray through a prism when it suffers minimum deviation. How is the angle of emergence related to the angle of incidence in the position.

A rainbow is an example of dispersion of sunlight. Justify this statement by explaining, with a neat labelled diagram, the formation of a rainbow in the sky. List two essential conditions for observing a rainbow.

Ultra violet rays of the sunlight result in formation of