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Colloidal Solutions

Tyndall effec...

Question

Tyndall effect associated with colloidal particles is due to:

A

presence of electrical charges

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B

scattering of light

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C

adsorption of light

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D

reflection of light

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Solution

The correct option is A scattering of light
Tyndall effect is due to scattering of light by the colloidal particles. The colloidal particles first absorb light and then a part of the absorbed light is scattered from the surface of the colloidal particles. Maximum scattered intensity being in a plane at right angles to the plane of incident light, the path becomes visible when seen from that direction.

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