本题目来源于试卷: Photoelectric Effect，类别为 美国物理杯赛(Physics Bowl)
[单选题]
94.31: Light of a single freq;ob /w(,u mnwv1ouw5g;k): nyr .ho nj5nwn-uuency falls on a photoelectric material but no electrons are emitted. Electrons may burnj k5h -: o1)u. wng5nowy;ne emitted if the:
A. frequency of the light is decreased.
B. frequency of the light is increased.
C. intensity of the light is decreased.
D. intensity of the light is increased.
E. velocity of the light is increased.
参考答案: B
本题详细解析:
暂无
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