摘要
在简单介绍物距像距法、两次成像法、自准直法和成等大像法等四种测量薄透镜焦距的实验原理的基础上,以一个已知焦距的薄透镜为研究对象,分别利用这四种方法的原理对其焦距进行实验测量。对所得的结果进行比较,分析各种方法产生误差的原因及其适用范围,并得出成等大像法是这四种测量方法中相对较好的方法的结论。
The object image distance method,two time imaging method,autocollimation method and big image method are briefly introduced. A thin lens with a known focal length serving as research object,the focal length is experimentally measured by the theory of the four methods. The results are compared and the reasons and scope of application of different methods are analyzed. It is found that the big image method is better than others.
出处
《河池学院学报》
2016年第2期106-110,共5页
Journal of Hechi University
基金
2015年国家级和广西区级大学生创新创业训练计划资助项目(201510605012
201510605043)
河池学院教育教学改革基金资助项目(2009E011)
关键词
薄透镜
焦距
测量
研究
thin lens
focal length
measure
study