Which one of the following heat transfers is an example of convection?
- A. Heating of food in a microwave oven.
- B. Boiling water in a pot on a gas stove. ✓
- C. Feeling the warmth in sun.
- D. Heating a brass rod at one end and observing the temperature rise at the other end.
Correct Answer: B. Boiling water in a pot on a gas stove.
Explanation
Convection is the transfer of heat through the bulk movement of fluids (liquids or gases), such as water circulating in a boiling pot[cite: 1].
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