题目内容
氢原子能级图如图所示,a,b,c分别表示原子在不同能级之间的三种跃迁途径,设在a,b,c在跃迁过程中,放出光子的能量和波长分别是
和
,若a光恰能使某金属发生光电效应,则
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250031463523388.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003146305552.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003146321576.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250031463523388.jpg)
A.![]() | B.![]() ![]() ![]() |
C.![]() | D.C光也能使该金属产生光电效应 |
BC (3分)
试题分析:原子在不同能级跃迁时,放出光子的能量等于能级差,所以
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250031464461166.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250031464611070.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250031464771092.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003146430589.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003146524755.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003146383450.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003146399441.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003146415407.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.![]() | B.![]() ![]() ![]() |
C.![]() | D.C光也能使该金属产生光电效应 |