Punjab Medical Punjab - MET Solved Paper-1999

  • question_answer
    Velocity of sound in air is

    A)  directly proportional to temperature

    B)  faster in dry air than in moisture

    C)  directly proportional to pressure

    D)  none of these

    Correct Answer: C

    Solution :

    At constant temperature of medium the velocity of wave\[v=\sqrt{\frac{\gamma P}{\rho }}\](where \[P\] is pressure of medium) Hence, the velocity of sound is directly proportional to pressure.


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