题目内容
氢原子从A能级跃迁到B能级时,辐射出波长为λ1的光子,从A能级跃迁到C能级时,辐射出波长为λ2的光子,已知λ1>λ2,则氢原子从B能级跃迁到C能级时,将 (填“辐射”或“吸收”)光子,该光的波长为 .
【答案】分析:比较出B、C能级哪个能级能量高,通过
求出辐射光子的波长.
解答:解:因为λ1>λ2,根据
,知γ1<γ2.A到B辐射光子的能量小于A到C辐射光子的能量,所以B能级能量比C能级能量大,跃迁时辐射光子,B、C间的能级差
.
又知
,解得
.
故答案为:辐射,
.
点评:解决本题的关键知道高能级向低能级跃迁,辐射光子,低能级向高能级跃迁,吸收光子,知道能级差与光子频率间的关系
.
![](http://thumb.1010pic.com/pic6/res/gzwl/web/STSource/20131028201138256962826/SYS201310282011382569628013_DA/0.png)
解答:解:因为λ1>λ2,根据
![](http://thumb.1010pic.com/pic6/res/gzwl/web/STSource/20131028201138256962826/SYS201310282011382569628013_DA/1.png)
![](http://thumb.1010pic.com/pic6/res/gzwl/web/STSource/20131028201138256962826/SYS201310282011382569628013_DA/2.png)
又知
![](http://thumb.1010pic.com/pic6/res/gzwl/web/STSource/20131028201138256962826/SYS201310282011382569628013_DA/3.png)
![](http://thumb.1010pic.com/pic6/res/gzwl/web/STSource/20131028201138256962826/SYS201310282011382569628013_DA/4.png)
故答案为:辐射,
![](http://thumb.1010pic.com/pic6/res/gzwl/web/STSource/20131028201138256962826/SYS201310282011382569628013_DA/5.png)
点评:解决本题的关键知道高能级向低能级跃迁,辐射光子,低能级向高能级跃迁,吸收光子,知道能级差与光子频率间的关系
![](http://thumb.1010pic.com/pic6/res/gzwl/web/STSource/20131028201138256962826/SYS201310282011382569628013_DA/6.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目
氢原子从A能级跃迁到B能级时,辐射出波长为λ1的光子,从A能级跃迁到C能级时,辐射出波长为λ2的光子,已知λ1>λ2,则氢原子从B能级跃迁到C能级时,将 (填“辐射”或“吸收”)光子,该光的波长为 .