1. Measurement of particle Dispersio size in aerosol n B. Tyndall 1. Red light passing Effect through a triangular prism C. III. Colours seen on the Refractio soap bubble in a. A-I; B-III; C-11 b. A-II; B-III; C-1 C. A-III; B-1; C-11 d. A-II; B-1; C-111
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The Tyndall effect is the scattering of light as a light beam passes through a colloid.
The Tyndall effect is due to the fact that colloidal particles scatter light in all directions in space. This scattering of light illuminates the path of the beam in the colloidal dispersion.
Tyndall effect is observed only when the following two conditions are satisfied.
The diameter of the dispersed particles is not much smaller than the wavelength of the light used and
The refractive indices of the dispersed phase and the dispersion medium differ greatly in magnitude.
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