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Please help, stuck -- Standard error in speed of sound wave...

  1. Apr 26, 2016 #1
    https://fbcdn-sphotos-a-a.akamaihd...._=1461854936_dad2ac5d3bd3a844b9428cd47c7dc733

    Not sure if this counts as "advanced physics homework" but can someone please help me here.
    I keep getting 591.1489m/s for the error in speed of sound, but the actual value of speed of sound is v=346.0425 and you obviously cant have an error larger than your actual value. (let me know if the link isnt working too)
     
    Last edited by a moderator: Apr 26, 2016
  2. jcsd
  3. Apr 26, 2016 #2

    Simon Bridge

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    You can have an error bigger than the value ... for instance is you subtract two measurements.
    ##1\pm 0.1 - 0.9\pm 0.09 = 0.1\pm 0.19##

    But in your case the error on your wavelength is bigger than your wavelength (1st term under the square-root).
     
  4. Apr 26, 2016 #3
    Yeah I just read that, thanks man.
     
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