在弦振动实验中出现的两个模糊概念

Two Confused Conceptions Appearing in the Vibration Experiments

主要阐述了在振动实验中容易出现的两个模糊概念 :一是是否只有当弦线长度 L=n λ2 时 ,才能形成驻波 ,二是是否弦线上形成驻波 (L=n λα) 。

This article mainly expounded two confused conceptions which are easily appeared in the vibration experiments:one is whether only when the length of the chord L=nλ2,could form the stay wave ont. two is whether when stay wave is formed on the chord(L=nλ2)?the point of the turning fork must be the wave joint.