Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Monochromatic Light

  1. Jul 23, 2008 #1
    1. The problem statement, all variables and given/known data

    Monochromatic light of a wavelength of 5.20 x 10^2 nm enters glass (n=1.50). What is the frequency of light in the glass?

    2. Relevant equations
    I am thinking I am supposed to use the formula : wave length = d(sin ( ) )/n
    and then v=Frequency(wave length)

    3. The attempt at a solution
    This is where i got lost...

    I attempted to use the formulas but got really confused.
  2. jcsd
  3. Jul 24, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper

    Forget the formulas. What's the frequency outside of the glass? Can the frequency inside of the glass be different? Frequency counts the number of waves passing per second. If the number outside and inside are different, where are the extra waves going?? This may be more of an understanding question than a formula question.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook