34. The Tyndall effect is observed only when following
conditions are satisfied
(a) The diameter of the dispersed particles is much
smaller than the wavelength of the light used.
(b) The diameter of the dispersed particle is not
much smaller than the wavelength of the light
used
(c) The refractive indices of the dispersed phase and
dispersion medium are almost similar in
magnitude
(d) The refractive indices of the dispersed phase and
dispersion medium differ greatly in magnitude
