在波的叠加原理中,若两波的波峰(或波谷)同时抵达同一地点,称两波在该点同相,干涉波会产生最大的振幅,称为相长干涉(建设性干涉constructive interference)
相长干涉 ( constructive interference ): 讯号互相干涉后产生更大的振幅。若两波刚好同相干涉,会产生最大的振幅,称为完全 相长干涉 。
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在这种情况是相长干涉还是相消干涉?
In this case is it constructive or destructive interference?
这种情形称作相长干涉。
这种情形称作相长干涉。
So you see in the hybrid orbital we actually have a larger lobe on top where they constructively interfered.
所以你们可以看到在杂化轨道里,我们上面,由很大的一叶相长干涉。
Since we're talking about wave functions, since we're talking about the properties of waves, we don't only have constructive interference, we can also imagine a case where we would have destructive interference.
因为我们讨论的是波函数,因为我们讨论的是波的性质,我们不仅有相长干涉,我们也可以想象在,某种情况下会有相消干涉。
And it turns out that when you constructively have two p orbitals interfere, and when I say constructively, I mean they're both either positive or they're both the negative lobes, that's when you got bonding.
当两个p轨道,相长干涉时,我说的相干相长,意思就是说它们要么都是,正的叶瓣要么都是负的叶瓣,这时就能成键。
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