Which type of mixtures show Tyndall effect?

The Tyndall effect, also called the Tyndall phenomenon, scattering of a beam of light by a medium containing small suspended particles—e.g., smoke or dust in a room, makes visible a light beam entering a window.

Suspensions and colloidal solutions have solute sizes of very small particles. In suspension and colloidal mixtures, particles are not completely dissolved and can pass a beam of light through them.