Q. 24.1( 9 Votes )

Explain Tyndall effect and Brownian movement with suitable diagram.

Answer :

Tyndall effect : It is the effect in which the light is scattered due to colloidal particles in its path as a result path of light becomes visible.


In the figure shown above, the first solution is plain water which does not exhibit Tyndall effect while the second one is a colloidal solution which shows Tyndall effect as the path inside it becomes visible due to scattering of the light by the colloidal particle.


Brownian Motion: Upon dropping some tiny particles in the fluid and observing it with a microscope, we see the zig-zag movement of the particles which occurs due to the collision with the particles of the fluid. This phenomenon is known as


Brownian movement of the particles. Below figure depicts the erratic movement of the particles inside the fluid.



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