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 elecp qbc o b3fsgdp28+fu2 9 jqo70h3ar1ntrii ib )11)eo e/xn,xgoon is aimed midway between two parallel metal plates with a potential difference of 400i,/ inxeo))gio1 xbe1 V. The electron is deflected upwards and strikes 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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