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: Quantum Physic

  1. Jan 28, 2010 #1
    1. The problem statement, all variables and given/known data

    Light of wavelength 411 nm is emitted from a hydrogen discharge. What transition produces this emission?

    a. k = 5 to n =1
    b. k = 4.5 to n = 2
    c. k = 2 to n = 6
    d. k = 2 to n = 3
    e. k = 6 to n = 2

    2. Relevant equations

    R = (1/n^2 - 1/k^2)

    3. The attempt at a solution

    I'm not really sure how to solve it. But I'm sure its not a, b, or e. Because n to be bigger then k to make it positive. THat left me with c and d. Someone please hint me how to do this.
     
  2. jcsd
  3. Jan 28, 2010 #2

    kuruman

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Just plug in the choices for k and n pairs in the formula and see which one gives you the right wavelength.
     
  4. Jan 28, 2010 #3
    totally confused. >< can someone explain it to me.
     
  5. Jan 28, 2010 #4

    kuruman

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook