摘要
该文通过光电效应伏安特性及普朗克常数测量实验,研究光电管与汞灯光源之间距离和不同光阑对普朗克常数实验测量误差的影响。研究结果表明,随着光阑大小的增大,光源和光电管距离越近测得结果的相对误差越小,普朗克常数越接近理论值。
In this paper, the influence of the distance between the photoelectric tube and the mercury lamp and the measurement error of the planck constant is studied by the photoelectric effect volt - ampere characteristic and the planck＇s constant measurement ex- periment. The results shown that with the increase in apeture diatance, the relative error between the light source and the photoelectric tube is smaller, and the closer the planck constant is near the theoretical value.
出处
《实验科学与技术》
2017年第4期27-30,共4页
Experiment Science and Technology
基金
中国石油大学(华东)自主创新项目(17CX02034A)
中国石油大学(华东)精品实验项目(JS201608)
中国石油大学(华东)重点教改项目(JYA201616)
关键词
光电效应
普朗克常量
光阑
截止电压
photoelectric effect
plank constant
aperture
cut - off voltage
