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When one end of the rod is heated, the molecules at the hot end vibrate with higher amplitude and transmit the heat from one particle to the adjacent particle and so on. What is the process?

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When one end of the rod is heated, the molecules at the hot end vibrate with higher amplitude and transmit the heat from one particle to the adjacent particle and so on. What is the process?

(a) Convection

(b) Conduction

(c) Radiation

(d) Transmittance

This question was addressed to me in an online interview.

My question is taken from Thermal Conductivity in division Thermal Properties of Matter of Engineering Physics I

1 Answer

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Correct choice is (b) Conduction

Explanation: In the above condition, heat is transmitted by the vibration of particles. Conduction is the process in which heat is transferred from hotter end to colder end without the actual motion of particles. Therefore, it is conduction.

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