What is meant by Tyndall effect? (or) Explain about the optical property of colloid.
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What is meant by Tyndall effect? (or) Explain about the optical property of colloid.
What is meant by Tyndall effect? (or) Explain about the optical property of colloid.
1. Colloids have optical property. When a homogeneous solution is seen in the direction of light, it appears clear but it appears dark in a perpendicular direction.
2. When light passes through colloidal solution, it is scattered in all direction and it is known as Tyndall effect.
3. The colloidal particles absorbs a portion of light and remaining portion is scattered from the surface of the colloid. Hence the path of light is made clear.