光阑对普朗克常量测定影响的分析

Analysis to influence of aperture on measurement of Planck constant

在做光电效应测量普朗克常量的实验中,需将光阑及滤色片装在光电管暗箱光输入口上.而光阑的大小对截止电压值U0的测量是否有影响有多大的影响,本文根据多次测量数据,对此进行了讨论和分析.

In doing photoelectric effect experiment to measure Planck constant, the diaphragm and the filter should be mounted on the phototube camera ohscura on the optical input. By ＇repeated measurements of data, an analysis is made as for whether and how much the aperture size will affect the measurement of the cut - off voltage Uo.