摘要
利用分光计测量三棱镜折射率是典型的大学物理实验之一。利用出射角和偏向角的公式,分析了临界角的分布规律,推导了最小偏向角的公式。通过旋转三棱镜说明了折射率的测量方法.应用MATLAB绘制了曲线(族)和曲面.附录中的MATLAB程序比较完整,可以直观演示并解决上述问题,可供读者参考。
Measuring the refraction index of a triangular prism by spectrometer is one of the typical college physics experiments.Based on the formulas of exit angle and deviation angle,we analyzed the distribution law of critical angleand deduced the formula of minimum deviation angle,and illustrated the measurement method of refractive index by rotating a triangular prism.Then,the curves(curve family)and curved surface were plotted by MATLAB.The MATLAB program in the appendix is relatively complete,which can intuitively demonstrate and solve this above problems for readers’reference.
作者
刘天贵
周群益
莫云飞
王培颖
周艳明
LIU Tiangui;ZHOU Qunyi;MO Yunfei;WANG Peiying;ZHOU Yanming(College of Physics and Electronics,Hunan University,Changsha 410082,China;College of General Education,Guangzhou Institute of Science and Technology,Guangzhou,510540,China;School of Electronic and Communication Engineering,Changsha University,Changsha 410022,China)
出处
《大学物理实验》
2022年第6期96-100,共5页
Physical Experiment of College
基金
广东省高校科研特色创新项目(2020KTSCX209)
湖南大学教改基金课题资助。
关键词
三棱镜
入射角
出射角
偏向角
折射率
MATLAB程序
triangular prism
inclination angle
exit angle
deviation angle
refractive index
MATLAB program
