题目内容
如图所示,
、
两束不同频率的单色细光束,以不同的入射角从空气斜射入玻璃三棱镜中,出射光恰好合为一束。则( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040489832389.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004048952283.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004048968299.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040489832389.png)
A.在同种介质中b光的速度较大 |
B.两束光从同种玻璃射向空气时,b光发生全反射的临界角较大 |
C.用同一装置进行双缝干涉实验,![]() |
D.用![]() ![]() |
C
试题分析:由图知玻璃三棱镜后,b光的偏折程度较大,故玻璃对b光的折射率较大,根据
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004049061495.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004049093613.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004049108501.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004049124695.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004048952283.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004049171780.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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