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光的折射定律在高考考试说明中是二级要求,测定玻璃的折射率是考试说明中明确要求学生要掌握的14个实验之一.光的折射定律在高中物理中的重要性,由此可见一斑.光的折射现象容易观察,实验容易做,但如果要学生通过探究去发现其规律,难度不小,因为入射角与折射角之间的关系不是简单的正比关系,而是入射角的正弦与折射角的正弦成正比.角度容易测量,但是其正弦值不容易
The law of refraction of light is a secondary requirement in the test description of the college entrance examination and the determination of the refractive index of the glass is one of the 14 experiments explicitly required by the test specification to be mastered by the student. The importance of light refraction laws in high school physics can be seen The phenomenon of light refraction easy to observe, the experiment is easy to do, but if you want to explore the students to discover its laws, the difficulty is not small, because the relationship between the angle of incidence and refraction angle is not a simple proportional relationship, but the angle of incidence of the sine Is proportional to the sine of the angle of refraction. Angle is easy to measure, but its sine is not easy