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Determine the amplitude of the displacement for sound with an intensity of 120 dB, which corresponds...


Determine the amplitude of the displacement for sound with an intensity of 120 dB, which corresponds to the threshold of pain for the human ear. The sound has a frequency of 1 kHz. The bulk modulus of air is 1.42x10 5 Pa and the speed of sound in air is 340 m/s

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Answer #1


So, for I = 120 dB, we get
  
  
  
And for the expression of intensity, I, we write
  

  
  

  

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