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题目:一束光线斜射在空气和水的界面上,发生了折射和反射,如图1所示,请判断界面、法线、入射光线、反射光线、折射光线,并指出哪部分是空气?哪部分是水?分析:题目没有说明光线是从空气斜射入水中还是从水中斜射入空气中,只是从图1可以看出,从O点起,有七条线段,所以要正确判断界面、法线以及各条光线,需掌握一定的方法和技巧.下面介绍两种解题方法,供参考.一、假设法所谓假设法,就是假设其中某一条光线为入射光线(或反
Title: A beam of light is oblique at the interface between air and water, refracted and reflected, as shown in Figure 1, please judge the interface, normal, incident light, reflected light, refracted light, and pointed out which part is air? Part of the water? Analysis: The subject does not say the light is oblique into the water from the air into the air or oblique into the air, but from Figure 1 can be seen from the O point, there are seven lines, so to correctly determine the interface, normal and Each light, need to master a certain method and skill. Here are two solutions to problems. For reference, the so-called hypothetical method hypothesis, is to assume that one of the light rays as the incident (or anti