It is caused by reflection of the incident radiation from the surfaces of the particles, reflection from the interior walls of the particles, and refraction and diffraction of the radiation as it passes through the particles. Other eponyms include Tyndall beam (the light scattered by colloidal particles).

What is the cause of Tyndall effect as shown by colloid?

The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible. ... It is shown by colloidal particles because the colloidal particle size is roughly equal to the wavelength of the light.

What causes Tyndall effect Class 10?

Cause of Tyndal effect: The size of the colloidal particle is relatively larger than the solute particle of a true solution. ... Thus Tyndal effect is due to scattering of light by the colloidal particles and the colloidal particles are seen to be moving as points of light moving against a dark background.