图(a)为一列波在t=2s时的波形图,图(b)是平衡位置在
处的质点的振动图像,P是平衡位置为
的质点,下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2020/11/14/2592344465866752/2592904802549760/STEM/96b68e48-f42e-4dad-a625-72dec20b85b4.png?resizew=349)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21772babb4dd9e60c64e12f2fddfa3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd23353d1a4897ff868aeea01fcf9c0.png)
![](https://img.xkw.com/dksih/QBM/2020/11/14/2592344465866752/2592904802549760/STEM/96b68e48-f42e-4dad-a625-72dec20b85b4.png?resizew=349)
A.波的传播方向向右 |
B.波速为1m/s |
C.![]() |
D.![]() |
更新时间:2020-11-14 19:01:14
|
【知识点】 振动图像与波形图的结合
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单选题-单题
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适中
(0.65)
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【推荐1】一列简谐横波,在t=0.2s时波的图象如图甲所示,这列波中质点P的振动图象如图乙所示,那么该波的传播速度和传播方向是( )
![](https://img.xkw.com/dksih/QBM/2020/5/15/2463482266501120/2464200786927616/STEM/44dc86e7-1044-4b99-8927-3becf7670900.png?resizew=346)
![](https://img.xkw.com/dksih/QBM/2020/5/15/2463482266501120/2464200786927616/STEM/44dc86e7-1044-4b99-8927-3becf7670900.png?resizew=346)
A.v=1.5m/s,向左传播 |
B.v=1.5m/s,向右传播 |
C.v=2.0m/s,向左传播 |
D.v=2.0m/s,向右传播 |
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单选题-单题
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适中
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【推荐2】一列简谐横波,在
时刻的图像如图甲所示,此时,
、
两质点的位移均为
,波上A质点的振动图像如图乙所示,则以下说法错误的是( )
![](https://img.xkw.com/dksih/QBM/2021/3/19/2688190609793024/2692532874059776/STEM/4684c362-d1fd-4ff7-8d80-0a43a0a13fe8.png?resizew=481)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0188585034cd3472d761f7ec34d52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146e917ae43ea09bd8f8c662691ed83a.png)
![](https://img.xkw.com/dksih/QBM/2021/3/19/2688190609793024/2692532874059776/STEM/4684c362-d1fd-4ff7-8d80-0a43a0a13fe8.png?resizew=481)
A.这列波沿![]() |
B.这列波的波速是![]() |
C.从![]() ![]() ![]() ![]() |
D.从![]() ![]() ![]() ![]() |
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