what is tyndall effect class 10

The Tyndall effect is the phenomenon of scattering of a beam of light by colloidal particles when passed through a colloidal solution. It is the scattering of a light beam by a medium containing microscopic suspended particles, such as smoke or dust in a room, which makes a light beam entering a window visible. The effect is exhibited by all colloidal solutions and some very fine suspensions. The intensity of scattered light depends on the density of the colloidal particles as well as the frequency of the incident light. The Tyndall effect can be used to verify if a given solution is a colloid. John Tyndall, a 19th-century physicist, was the first to describe the Tyndall effect. An example of the Tyndall effect can be observed when a torch is switched on in a foggy atmosphere, making the path of the beam visible.