本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 IB物理学
[问答题]
If a string is vibrating invqz+; h9;s6uidl/vjj three segments, are there any placesm yz;ov(x)fyn7dv4 z2 you could touch it with a knife blade witnz)2 fdy y 7v4mv;o(zxhout disturbing the motion?
参考答案: The string could be touched at the location of a node without disturbing the motion, because the nodes do not move. A string vibrating in three segments has 2 nodes in addition to the ones at the ends. See the diagram.
本题详细解析:
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