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Homework Help: Predicting the speed of light

  1. Apr 21, 2013 #1
    1. The problem statement, all variables and given/known data

    I was wondering if anyone knew of an equation or table that I could compare my labs measured speed of light to? I'm aware that the index of refraction is 1.000293 at 1 atm and 0°c but was hoping to find a way to check our values specifically. We ended up with 1.0002343 so I know we were close.

    thanks for the help!
  2. jcsd
  3. Apr 21, 2013 #2


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    You can play around with effects of wavelength, temperature and pressure (as well as humidity and carbon dioxide content) here.
  4. Apr 21, 2013 #3
    Perfect, thank you! That put us a bit closer to the index (I figured this was the case) and gives me a way to make quick comparison's for future experiments. Really appreciate it.
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