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Class 8-9-10, JEE & NEET
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Tyndall effect is observed when :
Correct Option: , 4
Tyndall effect is observed only when the following two conditions are satisfied.
(i) The diameter of the dispersed particles is not much smaller than the wavelength of the light used.
(ii) The refractive indices of the dispersed phase and the dispersion medium differ greatly in magnitude.