Question

Which one of the process depends on gravity?
a) conduction
b) convection
c) radiation
none of the above​

Answer 1

Answer:

radiation.............

Answer 2

Answer:

The correct answer is b) convection.

Explanation:

Convection is the transfer of heat caused by the movement of fluid from one place to another. The fluid can be liquid, gas or plasma. The primary mode of heat transfer in fluids are mostly through convection.

It takes place mainly due to density and gravity. The formula is Q=hAΔT. Here Q stands for heat transfer rate, h stands for convection heat-transfer coefficient, A stands for exposed surface area and ΔT stands for temperature difference.

Hence, b) is the correct answer.

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