Physics 1 Problem Solutions 299

Physics 1 Problem Solutions 299 - a mixed state b vastly...

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Chapt. 40 More About Matter Waves Multiple-Choice Problems 040 qmult 00100 1 1 1 easy memory: infnite square well 1. In quantum mechanics, the infnite square well can be regarded as the prototype oF: a) all bound systems. b) all unbound systems. c) both bound and unbound systems. d) neither bound nor unbound systems. e) Prometheus unbound. 040 qmult 00200 1 1 3 easy memory: boundary conditions 2. Meeting the boundary conditions oF quantum mechanical bound systems imposes: a) Heisenberg’s uncertainty principle. b) Schr¨odinger’s equation. c) quantization. d) a vector potential. e) a time-dependent potential. 040 qmult 00300 1 1 4 easy memory: macro system in a stationary state 3. Except For certain special cases (superconductors, super±uids, and Bose-Einstein condensates), no macroscopic system can be in a:
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Unformatted text preview: a) mixed state. b) vastly mixed state. c) classical state. d) stationary state. e) state oF the union. 040 qmult 00400 1 1 2 easy memory: transitions 4. Transitions between stationary states (sometimes, but actually rarely, called quantum jumps) are: a) only collisional. b) both collisional and radiative. c) only radiative. d) neither collisional nor radiative. e) only collisional to higher energy stationary states and only radiative to lower energy stationary states. 040 qmult 00500 1 4 3 easy deducto-memory: lasers, stimulated emission 5. “Let’s play Jeopardy ! ²or $100, the answer is: It is the basis For lasers and masers.” a) What spontaneous radiative emission, Alex? b) What desultory radiative emission, Alex?...
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