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真是好兆头哇 有同学可能会问:一个电子连续接受几个光子不就解决光强的问题了吗
你看一万个光子照射到金属板上,也就能产生大约一百个光电子,可见受缚电子要想获得能量的可能性很小,虽然它有很强烈的意愿...
所以一个电子能接收到一个光子就好像中了五百万一样,可谁有那么大本事中一个五百万接着再中一个五百万?
是,五百万其实也不少了,可是你中奖了周围电子能不眼红吗?它们还得不停的撞你,跟你发生无规则振动,那点能量一会儿也就完了。
以上是新任物理老师在今天课上的一段关于光粒子性的讲解,听完后我感激涕零,象征性的——物理终于有救了
还有一件事要表扬一下自己, 请看下面
Dear Lisa, Thanks for writing in to BrainPOP.com! In your message, you pointed out an error with our “Sun Protection” quiz. You were absolutely right – humans can’t see UV light! We have fixed the error in our database, and the quiz should display the correct answer as soon as our site updates itself. That usually takes a few days, so the correct answer should appear by Monday or Tuesday, at the latest. Thanks again for bringing this error to our attention. Sincerely,
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