Question

It is hotter at some distance over the flames than in front of it because :

• A. air conducts heat upwards only
• B. heat is radiated upwards only
• C. convection of heat occurs upwards only
• D. heat is radiated downwards only

Answer 1

The correct option is C convection of heat occurs upwards only

Near flames, heat transfer occurs by both convection and radiation (and some conduction too).
But convection occurs only in upward direction. So, above the flame, it is hotter rather than in front of the flame.