Question

Draw a labeled diagram of rainbow formation. Also, explain the phenomenon of rainbow formation.

Answer 1

When sunlight splits due to water drops suspended in air, causing the band of seven colours then it is called rainbow.

Water droplets act as tiny prisms in the sky. The sunlight when enters these tiny droplets undergo internal reflection and also refracts these rays which are dispersed causing a band of seven colours called rainbow. A Rainbow is always formed in the direction opposite to the sun.