Question

Explain the following phenomenon giving reasons: (i) Tyndall effect

Answer 1

A beam of light passing through a true solution is not scattered. The scattering of light when it passes through a colloidal solution is called Tyndall effect. The Earth's atmosphere is a heterogeneous mixture of minute particles of smoke,tiny water droplets, suspended particles of dust and molecules of air which becomes visible due to scattering of light.