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

当这些光子撞时，它们会把电子撞开；我们称之为光电子。

That technology is called photoelectron spectroscopy.

这项技术被称为光电子能。

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

在化学和科学领域，我们实际上可以使用光电子能来测量电离能。

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，我们将创建一个光或光电子。

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

因此, 光电子光的酷之处在于, 我们实际上可以验证我们用库仑定律做出的预测。

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为光电子。

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，随着入射光强度的增加，发射的光电子数量也在增加。