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Waves Test - 70
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Waves Test - 70
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  • Question 1/10
    4 / -1
    If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be
    Solutions

  • Question 2/10
    4 / -1

    Solutions

  • Question 3/10
    4 / -1
    Quality of a musical note depends on
  • Question 4/10
    4 / -1
    A man x can hear only upto 10 kHz and another man y upto 20 kHz. A note of frequency 500 Hz is produced before them from a stretched string. Then
  • Question 5/10
    4 / -1
    The amplitude of two waves are in ratio 5 : 2. If all other conditions for the two waves are same, then what is the ratio of their energy densities?
    Solutions

  • Question 6/10
    4 / -1
    The loudness and pitch of a sound depends on
  • Question 7/10
    4 / -1
    If T is the reverberation time of an auditorium of volume V then
    Solutions

  • Question 8/10
    4 / -1
    The intensity of sound wave while passing through an elastic medium falls down by 10% as it covers one metre distance through the medium. If the initial intensity of the sound wave was 100 decibels, its value after it has passed through 3 metre thickness of the medium will be
    Solutions

  • Question 9/10
    4 / -1
    How many times more intense is a 60 dB sound than a 30 dB sound?
    Solutions

  • Question 10/10
    4 / -1
    The musical interval between two tones of frequencies 320 Hz and 240 Hz is
    Solutions

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