Question

Choose the correct statement regarding Tyndall effect:

• A. Tynall effect is observed when the diameter of the dispersed particles is not much smaller than the wavelength of the light used
• B. Tynall effect is observed when the refractive indices of the dispersed phase and the dispersion medium differ slightly in magnitude
• C. The Tyndall effect is due to the fact that colloidal particles scatter light in only one directions in space
• D. The scattering of light darken the path of beam in the colloidal dispersion

Answer 1

The correct option is A Tynall effect is observed when the diameter of the dispersed particles is not much smaller than the wavelength of the light used

(a) Tynall effect is observed when the diameter of the dispersed particles is not much smaller than the wavelength of the light used.
(b) Tynall effect is observed when the refractive indices of the dispersed phase and the dispersion medium differ greatly in magnitude.
(c) The Tyndall effect is due to the fact that colloidal particles scatter light in all directions in space.
(d) The scattering of light illuminates the path of beam in the colloidal dispersion