JEE Main 20172 April
- Exam
- JEE Main
- Year
- 2017
- Date
- 2 April
- Subject
- Chemistry
- Chapter
- Surface Chemistry
JEE Main 2017 · 2 April · Chemistry · Surface Chemistry
The Tyndall effect is observed only when the following conditions...
The Tyndall effect is observed only when the following conditions are satisfied,
The diameter of the dispersed particles is much smaller than the wavelength of the light used.
The diameter of the dispersed particle is not much smaller than the wavelength of the light used.
The refractive indices of the dispersed phase and dispersion medium are almost similar in magnitude.
The refractive indices of the dispersed phase and dispersion medium differ greatly in magnitude.
The diameter of the dispersed particles is much smaller than the wavelength of the light used.
The diameter of the dispersed particle is not much smaller than the wavelength of the light used.
The refractive indices of the dispersed phase and dispersion medium are almost similar in magnitude.
The refractive indices of the dispersed phase and dispersion medium differ greatly in magnitude.
Options
- A
- B
- C
- D
Correct answer
A.
Step-by-step solution
The Tyndall effect is an easy way of determining whether a mixture is colloidal or not. When light is shined through a true solution, the light passes cleanly through the solution, however when light is passed through a colloidal solution, the substance in the dispersed phases scatters the light in all directions, making it readily seen.
The Tyndall effect is observed only when,
The diameter of the dispersed particle is not much smaller than the wavelength of the light used.
The refractive indices of the dispersed phase and dispersion medium differ greatly in magnitude.
The Tyndall effect is observed only when,
The diameter of the dispersed particle is not much smaller than the wavelength of the light used.
The refractive indices of the dispersed phase and dispersion medium differ greatly in magnitude.