基于光速测量实验的教学拓展研究

Research on Teaching Expansion Based on Light Speed Measurement Experiment

为加深学员对波动光学的认识,通过测量平板玻璃折射率,拓展光速测量实验内容,分析误差来源,设计新的测量方案。采用数字双踪示波器的光标功能,方便快捷地获得折射率数值,基本满足基础物理实验的教学要求。

To deepen students’understanding of wave optics,the paper designs a new measurement scheme by measuring the refractive index of flat glass,expanding experimental content of light speed measurement and analyzing the source of errors.With the cursor function of a digital double-tracer oscilloscope,this scheme can be convenient to obtain the reflectance value,and basically satisfy the teaching demands of basic physics experiment.