题目内容
)爱因斯坦因提出了光量子概念并成功地解释光电效应的规律而获得1921年诺贝尔物理学奖.某种金属逸出光电子的最大初动能Ekm与入射光频率ν的关系如图所示,其中ν0为极限频率。从图中可以确定的是 。(填选项前的字母)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119147943.png)
E.遏止电压的大小只由入射光的频率决定
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119147943.png)
A.逸出功与ν有关 |
B.Ekm与入射光强度成正比 |
C.当ν>ν0时,会逸出光电子 |
D.图中直线的斜率与普朗克常量有关 |
CD
试题分析:金属的逸出功是由金属自身决定的,与入射光频率无关,其大小
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119162632.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119193781.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119209459.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119225561.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119240449.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119193781.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005119256845.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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