If a beam of light is passed through true solution, then it is

When a beam of light was passed through the solution of a substance 'A' dissolved in water, the path of light could be seen. Predict the nature of the solution.

Account for the following: When a beam of light is passed through the colloidal solution, the path of light becomes visible.

When a beam of light is passed through colloidal solution,

When a beam of light is passed through a colloidal solution , the light will be __________.