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Calculate acoustic pressure?

  1. Jun 14, 2013 #1
    1. The problem statement, all variables and given/known data

    Atmospheric pressure is 101 kPa. Compute the acoustic pressure that corresponds to the threshold of pain for the ear. What percentage of atmospheric pressure is this?


    2. Relevant equations

    L=20log(P/Po)

    Po is a constant = 2x 10-5
    threshold of pain for the ear=130db

    3. The attempt at a solution

    I'm getting 63 Pa (or 0.06%) for the acoustic pressure but it doesn't correspond to the answer which is one of the following.

    2%
    200%
    0.2%

    Thanks!
     
  2. jcsd
  3. Jun 15, 2013 #2
    Turns out my calculation were wrong, I got the answer.
     
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