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Sound Test - 4...

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  • Question 1
    1 / -0

    A speaker system generates sound waves at a frequency of 2400 Hz. If the speed of wave in air is 325 m/s, what is the wavelength?

  • Question 2
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    An elephant produces 20 Hz sound wave. What will be its wavelength if sound travels in the air at a speed of 344 ms-1?

  • Question 3
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    Pitch of a voice refers to its

  • Question 4
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    An echo returned in 2 s. If the speed of sound is 342 ms-1, what is the distance of the reflecting surface from the source?

  • Question 5
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    A certain sound has a frequency of 256 hertz and a wavelength of 1.3 m. What is the speed of this sound?

  • Question 6
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    Infrasonic waves are the waves having frequency

  • Question 7
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    Ultrasound is used for

  • Question 8
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    Which of the following statements is incorrect?

  • Question 9
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    Two sound waves in the air have their wavelengths in the ratio 2 : 5. The ratio of their frequencies is

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