A) cataphoresis
B) delectrophoresis
C) coagulation
D) Tyndall effect
Correct Answer: D
Solution :
On passing a beam of light through a colloidal solution, the colloidal particles absorb light energy and then emit it in all the possible directions. This phenomenon is called scattering of light or Tyndal effect. Note: Tyndall effect is not observed in true solutions.
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