SketchingWFPretest

SketchingWFPretest - 2010 Steve Goldhaber and the Physics...

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Sketching Wave Functions Pretest Name: _______________________________________ CU ID: ____________________ In the two sketches below, we show the ground state wave functions of electrons trapped in two different wells. (The wells extend beyond points x a and x b , but we only show X(x) in this limited region.) The potential V(x)=0 in the region between x a and x b in both cases, but has different forms elsewhere. Q1a: Which electron has a higher kinetic energy in the region between x a and x b ? A. Electron A has higher kinetic energy B. Electron B has higher kinetic energy C. They have roughly the same kinetic energy D. There is not enough information E. It depends on the position where you measure the energy. Q1b: Briefly explain your reasoning
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Unformatted text preview: 2010 Steve Goldhaber and the Physics Education Group University of Colorado at Boulder Q2a: The figure to the right shows a potential well where V(X)=0 for 0<x<a and V(X)=V 1 everywhere else. We want to place an electron in this well in its ground state (lowest energy eigenstate). What can you say about the energy of this electron as the value, V 1 , increases? A. The electrons energy will increase B. The electrons energy will decrease C. The electrons energy will remain the same D. There is not enough information E. It depends on the position where you measure the energy Q2b: Briefly explain your reasoning 2010 Steve Goldhaber and the Physics Education Group University of Colorado at Boulder...
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This note was uploaded on 02/27/2012 for the course PHYSICS 3220 taught by Professor Stevepollock during the Fall '08 term at Colorado.

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SketchingWFPretest - 2010 Steve Goldhaber and the Physics...

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