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Quantum Theory makes me go crazy

  1. Sep 19, 2006 #1

    I am in a General Chemistry class but we are on the chapter: Quantum Theory and Electronic Structure of Atoms. I do not understand my teacher and want some kind of real human being to explain to me how to find an answer to the question I'm going to give. Please do not think that I'm cheating on homework or anything, I want to know how and why the answer is what it is not just a quick answer.

    Here is the question: What is the wavelength (in nanometers) of light having a frequency of 8.6 x 10^13 Hz? What is the frequency (in Hz) of light having a wavelength of 566nm?

    Thanks to anyone who can help (or give me a joke to laugh at) :smile:
  2. jcsd
  3. Sep 19, 2006 #2

    Doc Al

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    Staff: Mentor

    How do speed, wavelength, and frequency relate for any wave? (Hint: Consider the units of each.) What's the speed of light?
  4. Sep 19, 2006 #3


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    Do you know the equation which relates the frequency and wavelength of a wave through its velocity of propagation?

    [itex] \nu \lambda = c [/itex]

    - Warren
  5. Sep 20, 2006 #4
    the answer above is right
  6. Sep 20, 2006 #5
    maybe the threadstarter wanna know why is the equation [itex] \nu \lambda = c [/itex] ?
  7. Sep 20, 2006 #6


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    I believe that was Doc Al's point.
  8. Sep 20, 2006 #7


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    So, a priest, mininster, and a rabbi may have walked into a bar...
  9. Sep 20, 2006 #8

    I understand what Doc Al and Chroot are both getting at. So after using the equation that was given by Chroot I should convert the answer into nanometers?
  10. Sep 20, 2006 #9

    Doc Al

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    If they want the wavelength in nanometers, give them nanometers!

    1 nm = [tex]10^{-9}[/tex] m
  11. Sep 20, 2006 #10
    Ha! They MAY have walked into a bar? Did they or didn't they?
  12. Sep 20, 2006 #11
    Thank you! I shall give them nanometers!

    ...nanometers that destroy:devil:

    No but seriously thank you o:)
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