1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Period of a monocromatic light?

  1. Feb 1, 2007 #1
    1. The problem statement, all variables and given/known data

    What is the period of a monochromatic light with a wavelength of 660nm?
    f=660nm

    2. Relevant equations

    T= 1/f (I think?)

    3. The attempt at a solution

    T = 1/660nm
    The period of this monochromatic light is 0.00152 waves/nm.
    Firstly, I don't know for sure that the variable T is equal to period, as this is review of last years stuff i've forgotten. Also, just to ask a quick question in this thread for my next question so I don't have to post it here, in the formula v = f& (the & is actually a weird greek symbol), what does the & stand for?
     
  2. jcsd
  3. Feb 1, 2007 #2

    cristo

    User Avatar
    Staff Emeritus
    Science Advisor

    T=1/f is correct, but f here stands for frequency. In your question, the wavelength is 660nm, not the frequency. First, you need to use the equation [itex]v=f\lambda[/itex] to calculate the frequency, then use the formula for time period. The "weird greek symbol" is the greek letter lambda and stands for wavelength.
     
  4. Feb 1, 2007 #3
    Thanks a lot for the help.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Period of a monocromatic light?
  1. Period of the moon (Replies: 18)

  2. Period of oscillation (Replies: 8)

  3. Period of oscillation (Replies: 3)

Loading...