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Q:

Which of the following statements is not correct?

  • 1
    The velocity of sound in air increases as the temperature increases.
  • 2
    The velocity of sound in air does not depend on pressure.
  • 3
    The velocity of sound in air decreases with the increase of humidity.
  • 4
    Noise velocity in air is not affected by change in amplitude and frequency.
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Answer : 3. "The velocity of sound in air decreases with the increase of humidity."

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