如何观察水波干涉图样江苏省沛县师范学校辛厚平研究波的特性，常用波动水槽来做实验，并用投影仪将水波的干涉图样投影到屏幕上进行观察．这样做大大增加了实验的可见度．笔者在多年的教学中体会到，要使学生能根据水波的干涉图样很好地认识波的干涉现象，在使用投影仪观... How to Observe Water Wave Interference Patterns Xin Houping of Peixian Normal School in Jiangsu Province studied the characteristics of waves. Wave tanks were often used for experiments, and projectors were used to project the interference patterns of water waves onto the screen for observation. This greatly increases the visibility of the experiment. The author experienced in many years of teaching, to enable students to be able to well understand the wave interference phenomenon based on the interference pattern of water waves, in the use of projectors ...