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一列波在向前传播的途中遇到障碍物或者两种介质的界面时,进行波和反射波相互叠加就会形成驻波.可以认为驻波是一种特殊的干涉现象.用弦线就可以演示驻波,人民教育出版社出版的全日制普通高级中学教科书(试验修订本.必修)物理第2册第59页图10-25所示的演示实验“弦线上的驻波”
When a wave encounters an obstacle or an interface between two kinds of media on the way of forward propagation, standing wave will be formed by wave and reflection wave superimposed on each other. The standing wave can be considered as a special interference phenomenon. Demonstration standing wave, People’s Education Publishing House published full-time ordinary senior high school textbook (test revised compulsory) Physics Volume 2 page 59 Figure 10-25 shows the experimental “standing wave on the string”