Convection is a process of heat transfer by the actual movement of molecules. Convection can take place only in I and II Heat transfer by III. can take place without any medium. The given statements are correctly completed by alternative
Heat transmission through convection does not take place in
In fluids, heat transfer takes place primarily due to
No medium is required for transfer of heat by the process of convection
a) Name the mode of heat transfer from one body to another where it is essential for the two bodies to be in contact. b) Name the mode of heat transfer that can take place even in vacuum.