题目内容
下列说法中正确的是
A.一群处于n=3能级的氢原子自发跃迁时能发出2种不同频率的光子 |
B.![]() |
C.核反应12H+13H→24He+01n属于原子核聚变 |
D.发生光电效应时,入射光越强,光子的能量就越大,遏止电压就越大 |
BC
试题分析:一群处于n能级的氢原子可发出
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824225148547761.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824225147689310.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824225150310848.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824225151324746.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824225147689310.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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