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BHU PMT BHU PMT (Screening) Solved Paper-2010

  • question_answer
    Assertion  Most probable velocity is the velocity possessed by maximum fraction of molecules at the same temperature. Reason (R) on collision, more and more molecules acquire higher speed at the same temperature.

    A)  Both Assertion and Reason are true and the Reason is the true explanation of the Assertion.

    B)  Both Assertion and Reason are true, but Reason is not the true explanation of Assertion.

    C)  Assertion is true, but Reason is false.

    D)  Assertion is false, but Reason is true.

    Correct Answer: C

    Solution :

                     Collisions of gas particles, either with the walls of the container or with each other, are perfectly elastic, ie, total kinetic energy and thus the distribution of speeds remains constant at a particular temperature. Hence, reason is false.


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