Question

What is Tyndall Effect? Tyndall Effect can be observed when sunlight passes through the canopy of dense forest. Explain how this occurs.

Answer 1

Tyndall effect: The phenomenon in which the solute particles of colloids or suspension scatter the beam of light and show its path is called the Tyndall effect.

Tyndall effect in the dense forest:

• In the forest, the air contains mists that behave like colloids.
• A colloid is primarily a heterogeneous mixture in which the minute particles of one substance are dispersed in another substance, called the dispersion medium. The minute particles here are 1 to 1000 nanometers in diameter.
• When light is passed through the canopy of a dense forest, these particles scatter the beam of light and show its path.
• So it can be observed when sunlight passes through the canopy of dense forest.

Therefore, the Tyndall effect can be observed when sunlight passes through the canopy of dense forest due to the scattering of light beams by air-containing mist.