MP Board · Class 9 · Science · Is Matter Around Us PureWhat is the Tyndall effect? Name two mixtures that exhibit this effect.
Step-by-Step Solution
The Tyndall effect is defined as the phenomenon of scattering of a beam of light by small colloidal particles present in a medium, making the path of the light beam visible. This effect occurs because the particle size in colloids is large enough to scatter visible light rays. Examples of mixtures that exhibit the Tyndall effect include milk, mist/fog in the air, and starch solution in water when light passes through them.
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