Concept:Tyndall effect is the scattering of light by particles in a colloid or fine suspension.
Explanation:Light is redirected in all directions when it passes through particles whose size is comparable to the wavelength of light.
This scattering is called Tyndall scattering.
Longer wavelengths are transmitted more, while shorter wavelengths are reflected more.
The Tyndall effect is used to check whether a mixture is a true solution or a colloid.
Examples of colloids showing the Tyndall effect: milk, starch solution, and emulsions.
A true solution, like sugar solution, does not show the Tyndall effect.
Answer:Option A: scattering of light by the colloidal particles.
