Question

what is principal of heat exchange ?​

Answer 1

${ \fcolorbox{pink}{pink}{principle \: of \: heat \: exchange}}$

${ \fcolorbox{yellow}{yellow}{heat energy lost by the object = heat energy gained by the object .this is called principal of heat exchange .}}$

Answer 2

Answer:

1. conduction

2. convection

3. radiation

Explanation:

1. conduction - heat transfer by touching of two object

2. convection heat transfer through air

3. radiation - heat transfer through light