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Cupcake
Cupcake asked in Science & MathematicsPhysics · 10 years ago

Speed of electron from de broglie wavelength?

An electron has a de Broglie wavelength of 225 nm. What is the speed of the electron?

3 Answers

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  • Mike
    Lv 6
    10 years ago
    Favorite Answer

    p = h / λ

    m*v = h / λ

    v = h / λ*m

    v = (6.63e-34) / ( (225e-9)*(9.11e-31) ) = 3,234.5408 m/s

  • ?
    5 years ago

    Speed Of Electron

    Source(s): https://shrink.im/a9YCt
  • matthew nguyen
    10 years ago

    wavelength=h/mv

    Find mass of an electron (9.1 times 10^-31 kg) and convert wavelength to meters. H=(6.626 X 10^-34)

    V=h/(m X wavelength)

    X=multiply lol

    lemme know if u get it right.

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