摘要
依据作者提出的改进的光电效应外推法实验方案测量了普朗克常量,验证了入射光的频率与"截止电压"的线性关系,得到较好的实验结果.此外,分析了利用爱因斯坦光电方程的截距来测量功函数和确定截止频率的方法误差较大的原因,讨论了现今大学物理实验中两个流行方法的合理性.
The Planck constant is measured by using of the modified extrapolation method of photoelectric effect according to a reference by the same author, in which the linear relation between the frequency ν of incident light and “stopping voltage U ′ S”is verified, and the result of Planck constant measured by this method is preferably consistent with the standard value. In addition, the reasons why there are so big errors in the measurement of work function by the way of Einstein photoelectric equation and in the determination of limit frequency are also investigated, and two current methods in the college physics experiment textbooks are discussed.
出处
《大学物理》
北大核心
2003年第12期38-41,共4页
College Physics
