The heat transfer from coolant to air in the radiator of an automobile engine takes place by
एक ऑटोमोबाइल इंजन के रेडिएटर में शीतलक से वायु में ऊष्मा हस्तांतरण किसके द्वारा होता है
Radiation only
Convection only
Convection and radiation
Conduction, convection and radiation
Convection and radiation
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