Parallel Plates (id: c8fc3fe21)

本题目来源于试卷: Parallel Plates，类别为 美国物理杯赛(Physics Bowl)

[单选题]
02.35: A 300 eV electron is aimed midway between two pa 6/u tlz(s4g(1vbu9e+/an mbdw 9 jblxrallel metal plates wit)gcstpmqqirp5.hf8 / ye4* 5c7bmjw /h a potential difference of 400 V. The electron is deflected upwards and strightmb j/w.qccs r fp5y48m*/5 e i)q7pkes the upper plate as shown. What would be the kinetic energy of the electron just before striking the metal plate?

A. 360 eV
B. 400 eV
C. 500 eV
D. 700 eV
E. 740 eV


参考答案:  C


本题详细解析: 暂无

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