波的多解性问题历来是高考中的一个热点,同时,又是学生学习波的一个难点所在。造成理解难的原因是学生对波的多解性问题的原因不明确,或者说理解得不够透彻。现在我就通过一题多变的形式,让大家深刻地认识造成波的多解性的原因所在。例:一根张紧的水平弹性长绳上的a、b两点相距8m,b点在a点的右方。当一列简谐波沿此绳向右传播时,若a点位移达到正向最大值,b点位移恰好为零,且向下运动。若波的波长大于8m,经 Wave of multi-solution has always been a hot topic in college entrance examination, at the same time, but also a wave of students learning difficulties. The reason for the difficulty in understanding is that the reasons for the students’ multidimensional nature of the wave are not clear or not sufficiently understood. Now I am going through a questionable and changeable form so as to make people deeply understand the reason for the multiplicity of waves. Example: A tensioned horizontal elastic rope on the a, b two points apart 8m, b point a point to the right. When a row of simple harmonic waves along the rope to the right, if a point displacement reaches a positive maximum, b-point displacement is exactly zero, and down. If the wave wavelength is greater than 8m, after