Depending upon the solution, the light waves may be refracted or reflected.
However, if you are asking about low mass/low density particles, in general they will tend to accumulate towards the top of the solution based upon relative differences in density.
When a beam of light passes through a colloidal solution, the light scatters off the suspended particles in the solution in all directions. This scattering of light is known as the Tyndall effect. The intensity of the scattered light depends on the size of the particles in the colloidal solution.
It all depends on the particles and the solution
The particles of solute dissolve in the solvent when the solution forms.
When a solution is ionic, it contains charged particles (ions) that can conduct electricity. If an electric current is passed through the solution, the ions move and allow the flow of electricity. If a light bulb is connected in the circuit and the ionic solution is conductive enough, the bulb will glow, indicating that the current is flowing through the solution.
They are called "colloids". These have large particles that are suspended in a solution.
The more energy a substance has the faster its particles in solution will move.
When paper with a gelatin-based solution is coated with silver nitrate solution, a light-sensitive layer called silver halide is formed. The silver halide particles react with light to create a latent image. This image can be developed and fixed to produce a visible photograph.
suspension solution does not allow the light to pass through it because particles present in the solution are larger in the size so they absorb the light and they obstruct the path. thus the light does not pass through it.
If it shows the presence of colloidal particles in solution, by scattering any beam of light that falls directly onto it in a direction different from the direction from which the light impinges.
The Tyndall effect is the scattering of light by particles in a colloid or fine suspension, making the beam of light visible. In a sugar solution, which is a true solution (not a colloid), the particles are too small to scatter light significantly, so the Tyndall effect is not observed.
A solution with uniformly sized particles smaller than the wavelength of light will not scatter light.
When a strong beam of light is passed through a colloidal solution, then scattering of light is absorbed.