光电效应实验的改进

摘要

＂The photoelectric effect＂ is preliminary for the senior high school students to understand the quantum theory.It is difficult for students to understand it by the photoelectric effect phenomena and its principles,so the students knowing the phenomena of photoelectric effect by experiment is the most direct and effective method.With the poor experimental conditions in senior high school,the experiment is always difficult to demonstrate successfully,and does not accord with students＇ cognitive process.The paper improves the experiment on the existing experimental conditions,and presents three kinds of improved experiment schemes.%＂光电效应＂是高中学生对量子理论的初步认识,由于学生对光电效应现象及其原理不易理解,让学生通过实验认识光电效应现象是最为直接和有效的,但是在普通高中的实验条件下,实验不容易演示成功,而且不符合学生的认知过程。文章在原有实验条件的基础上,对实验进行了改进,给出了三种改进后的实验方案。