大学物理实验
大學物理實驗
대학물리실험
Physical Experiment of College
2015年
5期
86-90
,共5页
光电效应%普朗克常数%零点法%测量
光電效應%普朗剋常數%零點法%測量
광전효응%보랑극상수%영점법%측량
photoelectric effect%Plank' s constant%null method%measurement
探讨了测量的时间,光源和光电管之间的距离,通光孔径以及电压正反调节对普朗克常数测量的影响,利用零点法测量了大学物理光电效应测普朗克常数实验中的遏止电压,对五种不同频率的光进行了其伏安曲线的测量,通过Origin软件拟合遏止电压和光频率的直线进而测算普朗克常数并对数据进行了分析.
探討瞭測量的時間,光源和光電管之間的距離,通光孔徑以及電壓正反調節對普朗剋常數測量的影響,利用零點法測量瞭大學物理光電效應測普朗剋常數實驗中的遏止電壓,對五種不同頻率的光進行瞭其伏安麯線的測量,通過Origin軟件擬閤遏止電壓和光頻率的直線進而測算普朗剋常數併對數據進行瞭分析.
탐토료측량적시간,광원화광전관지간적거리,통광공경이급전압정반조절대보랑극상수측량적영향,이용영점법측량료대학물리광전효응측보랑극상수실험중적알지전압,대오충불동빈솔적광진행료기복안곡선적측량,통과Origin연건의합알지전압화광빈솔적직선진이측산보랑극상수병대수거진행료분석.
The influences of measurement conditions for results are seldom focused on. The influences of meas-uring time,distance between light source and photoelectric tube,light pass aperture and the direction of voltage on the results are discussed in this paper. The null method is used to determine the stopping voltage,voltage-current curves are measured for five different frequency lights,Plank' s constant is confirmed by fitting the straight ling for stopping voltages and frequencies,all the measuring data are analyzed and discussed using the Origin software.
