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| 1. |
Explain the following terms : Tyndall effect. |
| Answer» Solution :Tyndall EFFECT: If a colloidal solution placed in dark is observed in the direction of light, it appears CLEAR but if it is observed in a perpendicular direction, it appears OPALESCENT i.e., the path of light is illuminated by a bluish light. This effect is CALLED Tyndall effect. The bright cone of light is known as Tyndall cone. This effect is observed due to scattering of light in all 8 directions by the colloidal particles. The scattering of light illuminates the path of beam in the 6 colloidal DISPERSION. | |