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April15Lecture8

April15Lecture8 - in GaAs the binding energy is closest to...

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Q1 April 15 In the Bohr model of the hydrogen atom, an electron in the n = 2 orbit has A. a higher total energy and a higher kinetic energy than an electron in the n =1 orbit. B. a lower total energy and a higher kinetic energy than an electron in the n =1 orbit. C. a higher total energy and a lower kinetic energy than an electron in the n =1 orbit. D. a lower total energy and a lower kinetic energy than an electron in the n =1 orbit. E. none of the above
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Q1 April 15 In the Bohr model of the hydrogen atom, an electron in the n = 2 orbit has A. a higher total energy and a higher kinetic energy than an electron in the n =1 orbit. B. a lower total energy and a higher kinetic energy than an electron in the n =1 orbit. C. a higher total energy and a lower kinetic energy than an electron in the n =1 orbit. D. a lower total energy and a lower kinetic energy than an electron in the n =1 orbit. E. none of the above
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Q2 April 15 For the loosely bound electron of a “donor” impurity atom
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Unformatted text preview: in GaAs, the binding energy is closest to A. 100 eV. B. 10 eV C. 1 eV D. 0.1 eV E. 0.01 eV Q2 April 15 For the loosely bound electron of a “donor” impurity atom in GaAs, the binding energy is closest to A. 100 eV. B. 10 eV C. 1 eV D. 0.1 eV E. 0.01 eV When a photon bounces off an electron, the largest change in photon wavelength will be measured A. in the direction the photon was traveling originally B. opposite the direction the photon was traveling originally C. At 90º to the direction the photon was traveling originally D. In some other direction Q3 April 15 When a photon bounces off an electron, the largest change in photon wavelength will be measured A. in the direction the photon was traveling originally B. opposite the direction the photon was traveling originally C. At 90º to the direction the photon was traveling originally D. In some other direction Q3 April 15...
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