题目内容
一简谐横波以4m/s的波速沿x轴正方向传播.已知t=0时的波形如图所示,则( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250050334232365.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250050334232365.jpg)
A.波的周期为1s |
B.x=0处的质点在t=0时向y轴负向运动 |
C.x=0处的质点在t=![]() |
D.x=0处的质点在t=![]() |
AB
试题分析:由波的图象可知半个波长是2m,波长λ=4m,周期是
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005033470700.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005033485752.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005033516465.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.波的周期为1s |
B.x=0处的质点在t=0时向y轴负向运动 |
C.x=0处的质点在t=![]() |
D.x=0处的质点在t=![]() |