When a colloidal solution is observed under a | vedclass

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(A) Colloidal particles are too small to be seen directly under an ordinary microscope because their size is smaller than the wavelength of visible li

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Light scattered by colloidal particles

Vedclass · Answer

(A) Colloidal particles are too small to be seen directly under an ordinary microscope because their size is smaller than the wavelength of visible light. However,when a colloidal solution is observed under an ultramicroscope,the light scattered by the colloidal particles makes them visible as bright spots against a dark background. Therefore,we can see the light scattered by the colloidal particles.

When a colloidal solution is observed under a microscope,we can see:

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