Look at this graph, you can see that the number of photoelectrons emitted increases as the intensity of the incident light increases.

看这张图，你可以看到，随着入射强度的，发射的电子数量也在。

When these photons strike the surface, they knock electrons off it; we call these photoelectrons.

当这些子撞击表时，它们会把电子撞开；我们称电子。

And in chemistry, in science, we can actually measure ionization energy using something called photoelectron spectroscopy.

在化学和学领域，我们实际上可以使用电子能谱来测量电离能。

And so what's cool about photoelectron spectroscopy is we can actually verify the predictions that we made with Coulomb's Law.

因此, 电子谱的酷处在于, 我们实际上可以验证我们用库仑定律做出的预测。

That technology is called photoelectron spectroscopy.

这项技术被称电子能谱。

If we're looking at a sample of hydrogen we're going to create a spectrum or a photoelectron spectrum.

如果我们正在观察氢样本，我们将创建一个谱或电子谱。

The electrons which are emitted during such a process are called photoelectrons.

在这样的过程中发射出来的电子被称电子。