1. Limited time only! Sign up for a free 30min personal 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!

Finding ratio of wavelengths

  1. May 4, 2015 #1
    1. The problem statement, all variables and given/known data

    If λCu is the wavelength of Kα X-ray line of copper (atomic number 29) and λMo is the wavelength of the KαX-Ray line of molybdenum (atomic number 42), then the ratio λCuMo is close to
    1.99
    2.14
    0.50
    0.48
    2. Relevant equations
    De broglie relation λ = h/p

    3. The attempt at a solution
    How to calculate momentum?
    Or is there some other formula?
     
  2. jcsd
  3. May 4, 2015 #2

    BvU

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    There is some other formula. I google "k-alpha x-ray energy"and wikipedia tells me the answer straight away. You can do that too !
     
  4. May 4, 2015 #3
    Oh, so that is Moseley's formula. Never seen that.
    It was formula oriented , okay.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Finding ratio of wavelengths
  1. Finding e/m ratio (Replies: 1)

Loading...