Tyndall effect is observed when
Tyndall effect is observed when
Option 1 -
The diameter of dispersed particles is similar to the wavelength of light used
Option 2 -
The diameter of dispersed particles is much larger than the wavelength of light used.
Option 3 -
The refractive index of dispersed phase is greater than that of the dispersion medium.
Option 4 -
The diameter of dispersed particles is much smaller than the wavelength of light used.
-
1 Answer
-
Correct Option - 1
Detailed Solution:The diameter of the dispersed particles is not much smaller than the wavelength of the light used. The intensity of scattered light depends on the difference between the refractive indice of the D.P and D.M., In lyophobic colloids, this difference is appreciable and therefore the tyndal effect is quite well defined but in lyophilic sols the difference is very small and the tyndal effect is very weak. So, to show Tyndall effect the refractive indices of the dispersed phase and dispersion medium differ greatly in magnitude.
Similar Questions for you
The process of settling of colloidal particles is
In physisorption multimolecular layers are formed on solid surface.
Emulsion is a colloidal solution of liquid in liquid.
Haemoglobin is a positive colloid. Hence greater is the charge of anion, more effective will be the coagulation of haemoglobin.
Therefore,
Correct order of coagulating power is
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 679k Reviews
- 1800k Answers