学习机械波时,一些同学由于对波动这种新的运动方式的生疏,往往在解题时造成错解。下面就错解的原因加以分析。一、误以为质点随波迁移而造成错解例1,一列沿x方向传播的横波,其振幅为A,波长为λ,某一时刻波的图像如图1所示。在该时刻,某一质点的坐标为P(λ,0),经过4/1周期后,该质点的 When studying the mechanical wave, some students often misunderstood the problem because of the unfamiliarity with the new movement mode of fluctuation. The following is the reason for the wrong solution to be analyzed. First, mistakenly believe that the particle with the wave migration caused the wrong solution Example 1, a series of transverse waves propagating along the x direction, the amplitude of A, the wavelength of λ, at some point wave image shown in Figure 1. At this moment, the coordinates of a certain particle are P (λ, 0). After 4/1 cycles, the particle’s