And this is what they had expected that there would be no relationship, but instead here they saw that there was a linear relationship not to the intensity and the kinetic energy of the electrons, but to the intensity and the number of electrons.

另外一个实验,他们预期这两者没有关系,但他们看到的不是,光强和电子动能的,线性关系，而是光强,和电子数的线性关系。

麻省理工公开课 - 化学原理课程节选