Verified Solution • 2025–26 Session
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QJEEM23Ch654d: JEE Main 2023 Chemistry - Class 12 JEEM23Ch654d Solution: Given below are two statements, one is labelled as Assertion A…
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The diameter of colloidal particles in solution should not be much smaller than wavelength of light to show Tyndall effect.
Reason R : The light scatters in all directions when the size of particles is large enough.
In the light of the above statements, choose the correct answer from the options given below:
Multiple Choice Options
- A Both A and R are correct and R is the correct explanation of A
- B A is true but R is false
- C Both A and R are correct but R is NOT the correct explanation of A
- D A is false but R is true
Step-by-Step Verified Solution
Tyndall effect is observed only when the following two conditions are satisfied
(a) The diameter of the dispersed particle is not much smaller than the wave length of light used.
(b) Refractive indices of dispersed phase and dispersion medium differ greatly in magnitude.
(a) The diameter of the dispersed particle is not much smaller than the wave length of light used.
(b) Refractive indices of dispersed phase and dispersion medium differ greatly in magnitude.