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AP EAMCET · Chemistry · Surface Chemistry

Given below are two statements (S-I and S-II)
S-I: Scattering of light by dispersed particles of colloidal system is known as Tyndall effect.
S-II: The diameter of the dispersed particles should not be much smaller than the wavelength of the light used.
Choose the most appropriate answer from the options given below.

  1. A Both S-I and S-II are correct
  2. B \(\mathrm{S}-\mathrm{I}\) is correct but S-II is incorrect
  3. C Both S-I and S-II are incorrect
  4. D \(\mathrm{S}-\mathrm{I}\) is incorrect but \(\mathrm{S}-\mathrm{II}\) is correct
Verified Solution

Answer & Solution

Correct Answer

(A) Both S-I and S-II are correct

Step-by-step Solution

Detailed explanation

Tyndall effect is a characteristic of colloidal particles which scatter light if the size of the particles is similar to the wavelength of the light. Thus, both statements are correct.