题目内容
(6分)如图为氢原子的能级示意图,锌的逸出功是3.34 eV,那么对氢原子在能级跃迁过程中发射或吸收光子的特征认识正确的是 。(填正确答案标号。选对1个得3分,选对2个得4分,
选对3个得6分。每选错1个扣3分,最低得分为0分)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250037450597014.jpg)
E.用能量为14.0 eV的光子照射,可使处于基态的氢原子电离
选对3个得6分。每选错1个扣3分,最低得分为0分)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250037450597014.jpg)
A.用氢原子从高能级向基态跃迁时发射的光照射锌板一定不能产生光电效应 |
B.一群处于n=3能级的氢原子向基态跃迁时,能放出3种不同频率的光 |
C.一群处于n=3能级的氢原子向基态跃迁时,发出的光照射锌板,锌板表面所发出的光电子的最大初动能为8.75 eV |
D.用能量为10.3 eV的光子照射,可使处于基态的氢原子跃迁到激发态 |
BCE
试题分析:氢原子从高能级向基态跃迁时辐射的光子能量等于能级差,只有能级差大于等于锌板逸出功
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003745075506.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003745090414.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003745075506.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003745122546.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003745262517.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003745293525.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250037453091185.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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