Question: Tyndall effect of observed when :
The diameter of dispersed particles is much smaller than the wavelength of light used
The diameter of dispersed particles is much larger than the wavelength of light used
The diameter of dispersed particles is similar to the wavelength of light used
The refractive index of dispersed phase is greater than that of the dispersion medium
Correct Option: , 3
Solution:
The diameter of disperseed particles is similar to wavelength of light used.