Question

In which of the following processes does heat transfer in the form of movement of particles?

• A. Conduction
• B. Convection
• C. Radiation
• D. All of the above.

Answer 1

The correct option is B Convection

Conduction is a process of heat transfer through the vibration of the particles of a body, i.e. only heat energy flows through the body, but the particles do not move far away from their respective positions. This happens in solids.
Convection is a process of heat transfer happening in liquids and gases, and involves the movement of the particles all around the body in the form of convection currents.
Radiation is a process of heat transfer that does not require any physical medium for the heat to flow.