Question

11. a) How do you demonstrate Tyndall effect in milk and salt solution ? ​

Answer 1

Answer:

Milk is a colloidal solution. The particles of a colloidal solution are large enough to scatter a beam of light through it which makes it's path visible. This shows that milk shows Tyndall Effect.

Answer 2

Milk shows the Tyndall effect whereas salt solution does not show the Tyndall effect.  

Explanation:

Tyndall Effect-

• When a beam of light passes through a colloid then it gets scattered in different directions.
• This scattering of light is called the Tyndall effect

• It depends on the frequency of the light and density of the particles.

Tyndall Effect in Milk and Salt solution-

• Milk is a colloidal solution therefore it will be able to scatter the light showing the Tyndall effect.
• Salt solution is not a colloid since salt dissolves in water completely. Hence it will not show the Tyndall effect.