What is Tyndall Effect? "Tyndall Effect can be observed

(a) What is Tyndall Effect?
(b) “Tyndall Effect can be observed when sunlight passes through the canopy of dense forest.” Explain how this occurs.

(a) Scattering of beam of light by particles (suspension/colloids) is called Tyndall Effect.
(b) Forest contains mist which contains tiny droplets of water which act as particles of colloid dispersed in air and scatter the light falling on them hence show tyndall effect.