Question

What is meant by the Tyndall effect? Explain it with an example.
a. Why do different colors of light bend through different angles in the
prism?
b. With the help of a diagram, explain how water droplets help in the
formation of a rainbow.

Answer 1

Tyndall Effect is the scattering of light by colloidal particles.
Ex. Beam of light in a dark room through a small hole.

A) Because different colours of light have different wave length .

B) The water drops present in atmosphere work as small prisms in which refraction and internal reflection takes place and form spectrum i.e ( rainbow ). It is always formed in opposite side of sun.