Which of the following will show 'Tyndall effect?

Correct option is C

The correct answer is (c) Milk.
· The Tyndall effect is the scattering of light by particles in a colloid or in a very fine suspension. Milk, being a colloid, shows the Tyndall effect because it contains particles that are large enough to scatter light but small enough to remain suspended in the liquid.
· When light passes through milk, it gets scattered, and this scattering is what makes the path of light visible.
· Other solutions like salt, sugar, or copper sulfate are true solutions where the particles are too small to scatter light, so they do not exhibit the Tyndall effect.
Information Booster:
· The Tyndall effect can be observed in colloids like fog, mist, smoke, and gels.
· The effect is used to distinguish between a colloid and a true solution.
· The size of the particles in the colloid is crucial for light scattering, making the Tyndall effect visible.