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Homework Help: Quantum mechanics

  1. Apr 25, 2008 #1
    1. The problem statement, all variables and given/known data
    an electron is trapped in a sphere whose diameter is 52 x 10-15 m. What is the minimum uncertainty in the electron's momentum?

    2. Relevant equations
    I know that the uncertainty in the electron's position is equal to the diameter... but how do I set up the equation?

    3. The attempt at a solution
    p = h / d. I plugged in 6.626E-34 for h and the diameter given. Is this correct?
  2. jcsd
  3. Apr 25, 2008 #2

    Tom Mattson

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    Staff Emeritus
    Science Advisor
    Gold Member

    Yes, you're just using the Heisenberg Uncertainty Principle.
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