Question

Give some examples of Tyndall effect observed in your surroundings?

• A. Sunbeam coming from ventilation
• B. Milk in a glass appearing faint blue
• C. Sunbeam coming from behind the clouds
• D. Flour suspended in water

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A Milk in a glass appearing faint blue
B Flour suspended in water
C Sunbeam coming from ventilation
D Sunbeam coming from behind the clouds

The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible. The amount of scattering depends on the frequency of the light and density of the particles.
Examples: The visible beam of headlights in fog is caused by the Tyndall effect. The water droplets scatter the light, making the headlight beams visible.
Milk is a colloid that exhibits the Tyndall effect.