Final answer:
The Tyndall effect is a phenomenon where light is scattered by particles in a colloid. Out of the options provided, only the starch solution will show the Tyndall effect as it is a colloid with particles large enough to scatter light.
Step-by-step explanation:
The Tyndall effect is the scattering of light by particles in a colloid or in a very fine suspension. The effect is used in physical and biological research to determine the size and density of particles. To answer your question, out of the choices given, the starch solution (b) will show the Tyndall effect. This is because it is a colloid, which consists of tiny particles that are bigger than the size of a solution's particles. These particles can scatter light, which results in the Tyndall effect. However, solutions like salt in water, baking soda in water, and vinegar do not show the Tyndall effect because they are true solutions and their particle size is too small to scatter light.
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