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TYNDALL EFFECT [class 9]

                                          Tyndall Effect

When a beam of light passes through a colloid solution, the colloidal particles present in the solution do not allow the beam of light to completely pass through . When  beam of  light collides with the colloidal particles of the colloidal solution  its  scattered  or deviates from normal trajectory path  This scattering makes the path of the light beam visible just like to cone its called tyndall cone and phenomena called tyndall effect.

·         Examples of the Tyndall Effect:-

 Milk is a colloid that contains globules of fat and protein. When a beam of light  passes through milk  , the light is scattered  and milk  appear blue colour  Generally, blue light is scattered to a greater extent when compared to red light. This is because the wavelength of blue light is smaller than that of red light

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