Question

Which of the following methods requires medium for heat transfer?

• A. Conduction
• B. Convection
• C. Radiation
• D. Conduction and convection

Hint:

Always remember that convection cannot occur in a vacuum because it relies on fluid motion to transfer heat.

Answer 1

The Correct Option is B

Understanding heat transfer methods.
Convection specifically requires a medium (usually a fluid) to transfer heat, as it involves the movement of the fluid itself to transfer energy. Conduction also occurs through a medium, but is often thought of as occurring in solids. Radiation does not require a medium and can occur through a vacuum.