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Question

Transmission of heat by the movement of heated particles is called

A

Conduction

B

Convection

C

Radiation

D

Regelation

E

Expansion

Easy

Solution

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Correct option is
B

Convection

Convection is a mode of heat transfer in which the molecules near the heat source get heated up, expand, become less dense, and rise upwards. But the relatively colder molecules sink to the bottom and eventually get heated up. Thus the transmission of heat by the movement of heated particles is called convection.

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