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!

Homework Help: A-level electron speed question

  1. Dec 31, 2009 #1
    calculate the speed of an electon which has a de broglie wave length of 1.3x10-10m

    can any one help me with this question ive never had one like this come up so i havent a clue what to do, with only 2 weeks to my a-level exams
  2. jcsd
  3. Dec 31, 2009 #2
    Have you come across the de Broglie relation
    [tex]\lambda = \frac{h}{p}[/tex]
    for matter waves?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook