CBSE Class 9 Answered
When egg white is mixed with water and stirred what does it form? Are we able to see path of light through it?
Asked by Kanhaiya | 17 Sep, 2015, 11:50: AM
Expert Answer
Egg white in water forms a colloidal solution.
When we pass a beam of light through a colloidal solution, the path of the light becomes visible when seen from a direction at right angle to that of the incident light.
Usually the particles of size in the range of 10-9 m to 10-6 m scatter the visible light.
This scattering of light by particles in a colloid is known as Tyndall effect.
Answered by Vaibhav Chavan | 18 Sep, 2015, 09:17: AM
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