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此实验也可放在测透镜焦距实验之中,作为测薄透镜焦距实验的一个补充。学生对这一实验的完成表面上看起来非常简单,但却对学生搞清几何光学的计算、符号法则有很大帮助,因为这里的计算涉及到逆向光路的计算,这部分内容学生一般不大熟悉,因此,这是一个理论和实际联系的较紧的实验,特别是要求学生自己将 n、R_1和 R_2的公式推导出来,对理论的理解会更加深刻。
This experiment can also be placed in the lens focal length test, as a test of the lens thickness of a supplementary experiment. Students on the surface of this experiment seems very simple, but students understand geometric optics calculation, symbolic rules are of great help, because the calculation here involves the calculation of reverse optical path, this part of the content of students is generally not large Therefore, this is a tense experiment between theory and practice. In particular, students are required to deduce the formulas of n, R_1 and R_2, and their understanding of the theory will be more profound.