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Which of the following statements is true about the Tyndall effect in colloidal solutions?
It is observed due to the absorption of light by the colloidal particles.
It is observed only in colloidal solutions with small particle size.
It is observed due to the scattering of light by the colloidal particles.
It is observed only in colloidal solutions with large particle size.
Answers (1)
(3) It is observed due to the scattering of light by the colloidal particles.
It is observed due to the scattering of light by the colloidal particles.The Tyndall effect is the phenomenon where light is scattered by colloidal particles present in a solution, making the path of light visible. When a beam of light passes through a homogeneous solution, the path of light is not visible, as the particles in the solution are smaller than the wavelength of light, and the light passes through without any significant interaction. However, when the particles in the solution are larger than the wavelength of light, such as in colloidal solutions, the light interacts with the particles, and some of the light is scattered in different directions. The Tyndall effect is observed due to the scattering of light by the colloidal particles, which causes the path of light to become visible. The degree of scattering depends on the size, shape, and refractive index of the particles. Smaller particles scatter light more effectively than larger particles.
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