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If the De Broglie wavelength of an electron is equal to 450 nm calculate the velocity...

If the De Broglie wavelength of an electron is equal to 450 nm calculate the velocity of the electron. Assume that the electron's speed is non-relativistic.
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If the kinetic energy of an electron is 170 eV, calculate its De Broglie wavelength. For this non-relativistic electron you must first calculate its velocity from the general kinetic energy equation. Then you can find the De Broglie wavelength of the electron.

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