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前言在高中物理演示实验中,水波干涉和光的干涉的演示是成功的。但是声波干涉的演示却受到一点挫折;用音叉演示干涉时它呈现给我们的是一种假象。为了探索新的演示方法,笔者和不少同行一样也曾为此冥思苦想。到底能否找到一种简捷、生动、形象;就像水波干涉实验那样直观的演示方法呢?
Introduction In the high school physics demonstration experiment, the demonstration of water wave interference and light interference was successful. However, the demonstration of the sound wave interference suffered a certain setback; it was an illusion when it was demonstrated with the tuning fork. In order to explore new methods of presentation, the author, like many of his peers, once thought hard about it. Can you find a simple, vivid, and vivid image, like an intuitional presentation method like water wave interference experiments?