Physics 222 testC 2010
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Transcript of Physics 222 testC 2010
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PHYSICS 222 NAME
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EXAM C PRINT CLEARLY
APRIL 13. 2010
(10)1. A stable nuclear state (ground state for example) would have an energy width ofa. zero; b. h; c. hl4ir; d. infinity
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(10) 2. A particle in a rigid box has a ground state energy of 4 MeV. What is the least energythis system can absorb?
a. 4MeV; b. 12 MeV; c. 16 MeV; d. 25 MeV;
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(30) 3. Start with the wave function for an electron in an infinite square well with width L andiind the expectation value ofp2. The wave function is
I.7TX -t111= I—sin—e Ti
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(BE NEAT AND ORGANIZED.)
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(40) 4. Find the reflection coefficient for particles in Region II traveling in the minus x direction.Start with the time independent Schroedinger Equation and show all steps clearly.(BE NEAT AND ORGANIZED.)
Region I Region II
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4 particlesj
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