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全日制普通高级中学物理教科书(必修加选修)第二册中《驻波》一节里,关于空气柱内的“驻波”演示实验,由于粗玻璃管内的空气柱长度不易自行调节,收到的实验效果并不理想。部分教师往往先在实验室内测
In the “Standing Waves” section of the second-day general high school physics textbook (required for optional addition) in the second column, the “standing wave” demonstration experiment in the air column is not easy to adjust due to the length of the air column in the rough glass tube. The experimental results are not satisfactory. Some teachers often test in the lab first