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Discussion :: Heat and Mass Transfer

  1. When heat is transferred from hot body to cold body, in a straight line, without affecting the intervening medium, it is referred as heat transfer by

    2. A.

     Conduction
    B.

     Convection
    C.

     Radiation
    D.

     Conduction and convection

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    Answer : Option C

    Explanation :

    Thermal radiation generates from the emission of electromagnetic waves. These waves carry the energy away from the emitting object. Radiation occurs through a vacuum or any transparent medium (either solid or fluid). Thermal radiation is the direct result of random movements of atoms and molecules in matter.

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