Question

In which process is the rate of heat transfer maximum?

• A. Conduction
• B. Convection
• C. Radiation
• D. All of the above have the same rate of transfer

Hint:

Radiation transfers heat at the fastest rate, as it does not require any medium, unlike conduction and convection.

Answer 1

The Correct Option is C

Among the three methods of heat transfer—conduction, convection, and radiation—radiation has the maximum rate of heat transfer. - Conduction involves the transfer of heat through direct contact between molecules and typically occurs in solids. - Convection involves the transfer of heat through fluids (liquids or gases) by the movement of the fluid itself. - Radiation is the transfer of heat through electromagnetic waves (such as infrared radiation), and it does not require a medium. This allows heat to be transferred through a vacuum, such as how the Sun heats the Earth. Radiation is the fastest of these processes, as it does not depend on the movement of particles or the material's conductivity.