No, OK and that's correct, because each photon of light actually has more energy than is needed to eject an electron.
没有,好,对了,因为每一个光子实际上,都有更多的能量去逐出一个电子。
Even the expulsion of Satan from heaven was not sufficient to prove beyond a shadow of a doubt the legitimate authority of God.
即使是将撒旦逐出天堂也不足以,无可置疑的证明上帝的至高权威。
Yes. In fact, there is not enough energy in a single photon to go ahead and eject an electron from this zinc surface.
是的,事实上,这里的光子没有足够的能量,去从锌表面逐出一个电子。
They would have put me, if not run me out, but they would have that kind of excommunication halo over me, because they figured out I was going too far and violating some of the doctrines.
即使不将我赶走,他们也会在我头上放个逐出教会的光环,因为他们认为我偏离的太远,且违反了他们的一些教规。
So he casts the humans out of the Garden, blocks access to the tree of life.
因此他将人类逐出伊甸园,使他们没法接近生命之树。
As a result, the poets will have to be expelled from this city.
结果是,诗人将被逐出这座城。
So in this case, we don't have enough energy to eject an electron, so, an electron is not ejected.
所以在这种情况下,我们没有足够的能量,去逐出一个电子,这样没有电子被逐出。
And if we do, in fact, hit it with light to get the electrons off, it will go back to the straight up in position, or if it gets knocked hard enough it does that, too.
而且如果我们这么做,事实上,用光轰击它以逐出电子,它就会在原位置沿直线返回,或者如果它被撞击的足够猛烈,也会出现上述现象。
All right. We've got a big majority, and both are logical ways of thinking, but it turns out that the majority is correct, which is not always the case, but the electron is not ejected in this case.
好,大多数人都这么认为,这两种看法都是合乎逻辑的,但结果是大多数人是对的,这种情况不经常发生,但是电子在这种情况下,确实不会被逐出。
So we see that we do not eject electrons in the case of the laser pointer, even if we have this intensity, it is still not related to the energy of an individual photon, so we won't see an effect.
所以我们看到我们用激光笔,还是没有逐出电子,即使我们有这样的强度,它仍然与一个单个的光子能量无关,所以我们不会看到光电效应。
So, for example, we were talking about a threshold frequency as in a minimum frequency of light that you need in order to eject an electron from a metal surface.
举个例子来说,我们谈论的临界频率是,光从金属表面逐出一个电子,所需的最小频率。
So if we can figure out the binding energy, we can also figure out how much energy we have to put into our atom in order to a eject or ionize an electron.
所以如果我们可以计算出结合能,我们也可以计算出,我们需要注入多少能量到原子中,去逐出或电离一个电子。
Does it make any difference at all in terms of whether we can eject an electron?
这究竟与我们能否,逐出一个电子有区别吗?
And there is a relationship here, and that is that the number of photons absorbed by the metal are related to the number of electrons ejected from the metal. So, in this figure here what I'm actually showing is these little sunshines, which let's say are each one individual photon.
这里有一个关系是,被金属吸收的光子,和被金属逐出的电子是相关的,所以,我展示的这个图,是这些小太阳,我们这里代指每一个独立的光子。
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