Question

Answer the following questions:

Mixtures are constituted by more than one kind of pure form of matter, known as a substance. A student mixes salt and egg white in two separate beaker A and B respectively filled with water. They pass a beam of light through the mixture in the beaker in dark and observed that the path of light is visible in only beaker B.

In which of the following is the Tyndall effect observed?

In the given experiment, a torch is used to pass light through two beakers. Beaker (a) contains a solution of copper sulphate, and beaker (b) contains a mixture of water and milk. Why is the path of light visible in a beaker (b) but not in a beaker (a)?