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研究所、轉學考(插大)-近代物理學
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110年 - 110 國立清華大學碩士班考試入學試題_聯合招生:近代物理#105281
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13.For a free particle, y = A eitbxw#, please calculate the Expectation Value of Momentum.
其他申論題
11. How did Davisson and Germer prove the electron's wave property? (Please answer this question by simply drawing and explaining the experimental results, and prove the electron's wave property by using some relations/equations for its de Broglie wavelength from known or/and measured parameters.)
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(1) Kinetic energy,
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(2) Phasc velocity, and
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(3) Group velocities of its de Broglie waves. (Relativistic effects should be considered.)
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(1) Wavelength (nm),
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(2) Frequency (Hz) and
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(3) Energy (eV) of the electromagnetic wave emitted.
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15. Please calculate the Change in Wavelength (nm) of the 2p -7 Is photon when a H atom is under a magnetic field of 1 T.
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(1)a,b兩端之戴維寧(Thevenin)等效電壓【3分】
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(2)電阻【3分】
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