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MGIMS WARDHA MGIMS WARDHA Solved Paper-2007

  • question_answer
    The velocity of sound in air at NTP is 330 m/s. What will be its value when temperature is doubled and pressure is halved?

    A) 330 m/s                               

    B) 165 m/s

    C) 330 \[\sqrt{2}\] m/s       

    D) \[\frac{330}{\sqrt{2}}\]m/s

    Correct Answer: C

    Solution :

    As there is no effect of change in pressure on velocity of sound in air, and\[velocity\propto \sqrt{T},\] therefore when temperature is doubled, velocity becomes\[330\sqrt{2}m/s\].


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