NEET Sample Paper NEET Sample Test Paper-19

  • question_answer On heating one end of a piece of metal, the other end becomes hot because of

    A)  Resistance of the metal.

    B)  Mobility of atoms in the metal.

    C)  Minor perturbation in the energy of the metal.

    D)  Energized electrons moving to the other end.

    Correct Answer: D

    Solution :

    On heating one end of the metal piece the other end becomes hot; it is due to the movement of energized electrons from one end to another. It can also be explained on the basis of increased vibrational energy of a molecule that transfers the energy from the subsequent molecules hence the temperature raises due to the increase in collisions. Hence, the correct option is [d].

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