题目内容
A、B两种光子的能量之比为2:1,它们都能使某种金属发生光电效应,且所产生的光电子最大初动能分别为 EA、EB。则下列说法正确的是( )
A.A、B两种光子的频率之比为1:2
B.A、B两种光子的动量之比为1:2
C.该金属的逸出功
D.该金属的极限频率为![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211658515751.png)
A.A、B两种光子的频率之比为1:2
B.A、B两种光子的动量之比为1:2
C.该金属的逸出功
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211657532733.png)
D.该金属的极限频率为
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211658515751.png)
C
试题分析:光子的能量
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211659638490.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211700996570.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211702462532.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211703616511.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211704474597.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211705286674.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211706471678.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211707860547.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211708655760.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211709279554.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824211710106823.png)
点评:本题考察了爱因斯坦的光电效应的理解和计算。
![](http://thumb2018.1010pic.com/images/loading.gif)
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