.It was mentioned that the energy of an electron entering a crystal increases, which reduces its de Broglie wavelength. Consider a beam of 54-eV electrons directed at a nickel target. The potential energy of an electron that enters the target changes by 26 eV. (a) Compare the electron speeds outside and inside the target. (b) Compare the respective de Broglie wayelength.

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28. It was mentioned that the energy of an electron entering a crystal increases, which reduces
its de Broglie wavelength. Consider a beam of 54-eV electrons directed at a nickel target.
The potential energy of an electron that enters the target changes by 26 eV. (a) Compare
the electron speeds outside and inside the target. (b) Compare the respective de Broglie
wavelength.
Transcribed Image Text:28. It was mentioned that the energy of an electron entering a crystal increases, which reduces its de Broglie wavelength. Consider a beam of 54-eV electrons directed at a nickel target. The potential energy of an electron that enters the target changes by 26 eV. (a) Compare the electron speeds outside and inside the target. (b) Compare the respective de Broglie wavelength.
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