Question

The process of heat transfer in which heat is transferred with actual migration of medium particles is known as

• A. Conduction
• B. Convection
• C. Radiation
• D. Reflection

Hint:

Convection involves movement of fluid particles; it’s common in boiling water and atmospheric circulation.

Answer 1

The Correct Option is B

Convection is a mode of heat transfer in fluids (liquids and gases) where the transfer occurs due to the bulk movement of particles of the medium.
Warm fluid rises while cooler fluid sinks, setting up a convection current.
This mechanism is fundamentally different from: - Conduction, where heat is transferred through particle vibration without movement of the medium.
- Radiation, which involves transfer through electromagnetic waves and does not require a medium.
- Reflection, which refers to bouncing of waves and is unrelated to heat transfer.