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    Question

    Speed of sound in air is unaffected by change in

    :
    A Pressure Correct Answer Incorrect Answer
    B Humidity Correct Answer Incorrect Answer
    C Temperature Correct Answer Incorrect Answer
    D Volume Correct Answer Incorrect Answer

    Solution

    The speed of sound in air depends on the density of air and the density of air depends on the temperature. The speed of sound is unaffected by pressure. If the atmospheric pressure changes, the speed of sound in air remains constant.

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