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Waves And Sound...

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  • Question 1
    1 / -0

    A key of a mechanical piano is struck gently and then struck again but much this time. In the second case,

  • Question 2
    1 / -0

    The speed of sound in humid air is greater than that in dry air because

  • Question 3
    1 / -0

    Ultrasonic, infrasonic and audible waves travel through a medium with speeds of vu, vi and va, respectively. Which of the following relations holds true?

  • Question 4
    1 / -0

    What is the change in intensity level when the intensity of a sound increases by a factor of 105?

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