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几何光学试题通常以折射率为核心,考查光的反射、折射、全反射、色散等知识.在高三复习中,笔者发现有些光学试题综合度大,数学要求高、灵活性强,学生求解较为困难.下面笔者归纳了求解几何光学难题的4种策略,但求予读者以点滴启发.图11勤作光路,寻求角度关系例1.如图1所示,两块相同的玻璃等腰三棱镜ABC置于空气中,两者的AC面相互平行放置,由红光和蓝光组成的细光束平行于BC面从P点
Geometry optics questions are usually refractive index as the core, to examine the light reflection, refraction, total reflection, dispersion and other knowledge.In the third year of review, I found that some of the optical test comprehensive, high math requirements, flexibility, difficult for students to solve The following author summarizes the four kinds of strategies to solve the problem of geometric optics, but to give the reader a little bit inspiration.Figure 11 diligent light path, to seek the angle relationship example 1. As shown in Figure 1, two identical glass isosceles prism ABC In air, AC planes of the two are placed in parallel with each other, and a beam composed of red light and blue light is parallel to BC plane from point P