Question

The scattering of light by the dispersed phase is called? (a) Brownian movement (b) Tyndall effect (c) Adsorption (d) Electrophoresis

Answer 1

B. The Tyndall effect.

Explanation:

A. The Brownian motion is the observed as random motion of larger particles in a solution. This was one of the early evidences of the atomic theory.

B. suspended molecules that are not dissolved in solution are usually not visible to the naked eye. However the suspended molecules interfere with the light beams causing the photons to bounce off the molecules. This causes the light to be scattered.

C. Absorption causes the light energy to be taken in by the electrons of the atoms. The light is removed not scattered.

D. Electrophorsis has nothing to do with the photons or the scattering of light Electrophorsis is the movement not of light but of particles in a solution due to electric charge.