Question

In a closed room, heat transfer takes place by:

A

Conduction

B

Convection

C

Radiation

D

All of these

Easy

Solution

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Correct option is B)

occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection.  Liquids and gases expand when they are heated. Hence option () is the right answer .

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