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 paralhi2+f/ o6 -ge+hvxr4fa41eredww5halel m+w1tq5/wj vvp jd x74 s9ov9hgetal plates with a potential difference of 400 V. The electron is deflected upwards and strikes the upper plate as shown. What would be the kinetic energy of the electron just beforeo5vwpjvg9vxq+7j/ wsh14 d9t 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

微信扫一扫，分享更方便