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Homework Help: Find the speed of light in silica

  1. Mar 8, 2009 #1
    1. The problem statement, all variables and given/known data
    Light of wavelength 559nm in vacuum passes through a piece of silica (index of refraction 1.437). Find the speed of light in silica. Answer in units of m/s

    2. Relevant equations
    Index of Refraction = Speed of Light in Vacuum/Speed of Light in Substance
    [n = c/v]

    3. The attempt at a solution
    Manipulate: [n = c/v] ---> [cn = v]
    Plug in: (5.59 * 10^-7) (1.437) = (8.03 * 10^-7)

    I converted 559nm to (5.59 * 10^-7) meters

    It seems like a simple enough problem, but my answer is incorrect! =(
  2. jcsd
  3. Mar 8, 2009 #2


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    Science Advisor
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    Hi stickyriceyum! :smile:

    erm :redface: … try using c :wink:
  4. Mar 8, 2009 #3
    I got it =D Thank you!
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