Question

It is hotter for the same distance over the top of the fire than it is by the side is mainly because

• A. air conducts heat upward.
• B. heat is radiated upward.
• C. convection takes more heat upwards.
• D. convection, conduction and radiation all, contribute significantly in transferring heat

Answer 1

The correct option is C convection takes more heat upwards.

At a point in front of fire, heat is received significantly due to the process of radiation, while at a point above the fire, heat reaches both due to radiation and convection.