Wave Behavior C.2 Traveling Waves (id: 0bb96d872)

本题目来源于试卷: Wave Behavior C.2 Traveling Waves，类别为 IB物理学

[单选题]
For a wave traveling in a 0f7/c.iyg3lq jw+q r48 zjaalmedium, the variation of the particles' diw dz.ck,z9 e)ssplacement with distance travelled is shown in the following graphs, which represent the wave at different moments in time of a wave travelling to thes9cd,kz.e w) z right.


Graph I shows the wave at t=0s, while graph II is at t=1s.
The time difference between the two graphs is less than the wave's period.
Graph I


Graph II

What is the wave speed?

A. 4$cm\,s^{-1}$
B. 2$cm\,s^{-1}$
C. 1$cm\,s^{-1}$
D. 16$cm\,s^{-1}$


参考答案:  C


本题详细解析:
Explanation:

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