用白炽灯作光源测量普朗克常量——第36届国际奥林匹克物理竞赛实验题分析

Measuring Plank constant with an incandescent lamp as the source——The experimental problem of the 36th International Physics Olympiad

介绍了第36届国际奥林匹克物理竞赛“用白炽灯测量普朗克常量”实验,该题利用白炽灯作为辐射源并配合波长滤波器、减光板以及光敏电阻等装置,测量普朗克常量.文章对该实验进行了分析并给出解答.

The experimental problems, measurement of Plank constant with an incandescent lamp as the source in the 36th International Physics Olympiad, is introduced. In this experiment, Planck constant is determined by the apparatus, which consists Of incandescent lamp emitter, wavelength filter, weakener, photoresistance, etc. The analysis and solution are given.