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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?
     
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