Question

Which of the following can show Tyndall effect when a beam of light rays is passed through them? (1) Solution of milk and water (2) Solution of alcohol and water (3) Solution of salt and water (4) Solution of nitrogen and oxygen​

Answer 1

Answer:

1) salt solution 2) milk 3) copper sulphate solution 4) starch solution. The Tyndall effect is the mechanism in which the particles in a colloid scatter the rays of light that are directed at them. All colloidal solutions and some very fine suspensions exhibit this effect.

Answer 2

When a beam of light rays is passed through the solution of milk and water, it shows the Tyndall effect. (OPTION A)

TYNDALL EFFECT -

• The phenomenon of scattering of light by the particles suspended in the medium.
• The colloidal solutions exhibit the property of Tyndall scattering.
• The scattering of light depends on the density of the particles and the frequency of the incident light.
• Milk in water is a colloidal solution so when the light beam passes, t is scattered by the milk particles.
• The light that passes through the milk solution do not reflects.