An electron is confined to a tube of length L. The electron's potential energy is one half of the tube is zero, while the potential energy in the other half is 10eV. If the electron has a total energy E=15eV, then the ratio of the deBroglie wavelength of the electron in the 10eV region of the tube to that in the other half is?
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E = 100 eV = 100 * 1.602 * 10^{-19} J = 1.602 * 10^{-17} J
lambda = h/ sqrt(2mE) = 6.626 * 10^{-34} / sqrt(2 * 9.1 * 10^{-31} * 1.602 * 10^{-17}) = 1.227 * 10^{-10} m
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Explanation:
refer to the attachment..
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