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Homework Help: Telescope in Milikan Experiment

  1. Feb 25, 2007 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    My book mentions a telescope in order to measure velocities of electron.But does not explain why to use it?Plz. tell me why to use a Telescope?Thanks.

    3. The attempt at a solution
  2. jcsd
  3. Feb 26, 2007 #2


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    Staff: Mentor

    Could they mean microscope? AFAIK, Milikan's oil drop experiment was conducted in a small container, and small motions of the oil drops were being observed....

    The drawing at the wikipedia.org entry for this experiment definitely calls it a "microscope":

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