Question

Convection is the process of transfer of heat in:

• A. solid
• B. liquid
• C. semi-solid
• D. none of the above

Answer 1

The correct option is B liquid

The three processes of heat transfer are - conduction, convection and radiation.

Conduction - In this process, heat is transferred through particle to another particle, in the direction of fall of temperature, without any actual transfer of the particles.

Convection - In this process, heat is transferred through the actual movement of particles. Particles of a region become hot and move to another region and cold particles come to this region to get the heat.

Radiation - In this process, heat is transferred from the source to the receiver without any actual movement of source and receiver, without heating the intervening medium.