BohrAtomEPSolnF2011

BohrAtomEPSolnF2011 - b40 laD-I t:j =-/2" -[...

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I ME 501 Bohr Atom Example A hydrogen plasma with a high concentration of H atoms in the n = 5 level is used as a radiation source for illuminating a clean cesium electrode in an experimental study of the photoelectric effect. The work function for the clean cesium surface is 2.00 eV. (a) For which of the radiative transitions from the excited n = 5 level to lower levels in the hydrogen atom will the emitted photon be energetic enough to liberate electrons from the cesium surface? Draw an energy level schematic showing the radiative transitions from the n = 5 level, with the frequency (in cm- l ) of each transition labeled. (b) What is the maximum kinetic energy (in Joules) that the electron can have as it leaves the cesium surface due to radiation from one of the transitions from the n = 5 level of the hydrogen atom? - lOti,
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BohrAtomEPSolnF2011 - b40 laD-I t:j =-/2" -[...

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