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研究所、轉學考(插大)-近代物理學
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110年 - 110 國立政治大學_碩士暨碩士在職專班招生考試_應用物理所:近代物理#102925
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題組內容
2. [20 points] A particle in the infinite square well has the wave function,
2.2 [ 10 points] What is the probability of finding the particle to the left of a? b-a
其他申論題
1.6[4 points] In an experimental observation of the photoelectric effect, docs increasing the light amplitude change the stopping potcntial?
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1.7 [5 points] What is the physical interpretation of the horizontal intercept?
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1.8 [6 points] What is physical interpretation of the slope of the line?
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2.1 [ 10 points] Sketch and determine the constant A in terms of a, b.
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3.[10 points] An electron has a speed v=0.85 c , c is the speed of light. Find its total energy and kinetic energy in electron volts.
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4.[10 points] A free particle of mass m and energy E is moving from x = -∞ to x =∞. There is a potential stcp V, where V ＜ E, for x ≥0. Find the transmission and reflection coeficients for the particle in the one-dimensional step potential.
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5.1[10 points] Calculate the highest energy level (called Fermi energy) ef of the electron in the metal in terms of N, V and m.
#434333
5.2 [10 points] What is the total energy of all the N electrons in the metal as expressed in terms of N and? What is the average electron energy?
#434334
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