题目内容
一列简谐横波沿x轴传播,a、b为x轴上的两质点,平衡位置分别为
,
(
)。A点的振动规律如图所示。已知波速为
m/s,在
s时b的位移为0.05m,则下列判断可能正确的是____________。(填入正确答案标号。选对1个得2分,选对2个得4分;有选错的得0分)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500494057016027.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825004940461365.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825004940476396.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825004940508462.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825004940523395.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825004940539397.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500494057016027.png)
A.波沿x轴正向传播,![]() |
B.波沿x轴正向传播,![]() |
C.波沿x轴负向传播,![]() |
D.波沿x轴负向传播,![]() |
BC
试题分析:由题知,该波波长为
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825004940664613.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825004940679538.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825004940710576.png)
![](http://thumb.zyjl.cn/images/loading.gif)
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