题目内容
图中实线是一列简谐横波在某时刻的波形图,虚线是经过 0.2s 时该波的波形图.下列说法中正确的是
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250029267326233.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250029267326233.jpg)
A.波源的振动周期可能是0.8s |
B.波源的振动周期可能是1.6s |
C.波速一定为5m/s |
D.在任何一个周期内振动质点的位移都为8m |
A
试题分析:根据波动图可以看到,波长
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002926747534.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002926763861.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002926779416.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250029268101110.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002926825934.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002926841929.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002926779416.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250029268881146.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002926903963.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002926919450.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.波源的振动周期可能是0.8s |
B.波源的振动周期可能是1.6s |
C.波速一定为5m/s |
D.在任何一个周期内振动质点的位移都为8m |