Exam 1 Solutions

Exam 1 Solutions - PHYS 320 Exam #1 on 2-25-04 Ave = 87.0%,...

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PHYS 320 Exam #1 on 2-25-04 Ave = 87.0%, stdev = 9.0% p. 1 n = 2 n = 3 n = 4 n = Energy (eV) 0 –(Z – 7.4) 2 E 0 / 4 –(Z – 7.4) 2 E 0 / 9 –(Z – 7.4) 2 E 0 / 16 L α L β 1. Complete the table below by entering a process that obeys the electron/photon input and output parameters. Below the table, list one process that demonstrates the particle -like nature of light and another process that shows the wave-like behavior of electrons. (Ave = 92.4%) Photon Out Electron Out Photon In Elastic: X-ray diffraction Inelastic: Compton scattering Photoelectric Effect Electron In X-ray production in tube or Franck Hertz Elastic: LEED Inelastic: Franck-Hertz Particle-like light : photoelectric effect, Compton scattering Wave-like electron : LEED, diffraction/interference of e-beam with slit/s 2. Draw the L-series energy-level diagram for a multi-electron atom of nuclear charge Z with the levels n = 2, 3, 4, ¥ shown and energies labeled. (Note that n = 1 does not participate in L- series transitions.) Mark on the diagram the L a and L b transitions . (Ave = 86.1%) ( 29 2 0 2 7.4 L series: where n = 2 or larger L i EZ E n - = The energy levels are similar to atomic transitions of one-electron atoms (e.g. 1/n 2 behavior), but the effective nuclear charge becomes (Z – 7.4). 3. Briefly describe the process of Rutherford Scattering and how it relates to the modern nuclear model. In addition, sketch two paths
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Exam 1 Solutions - PHYS 320 Exam #1 on 2-25-04 Ave = 87.0%,...

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