作者starwish07 (Mauricio)
看板Physics
标题[问题] Atomic structure
时间Wed May 26 20:38:42 2010
1. When ultraviolet radiation of wavelength 58.4nm from a helium lamp is
directed on to a sample of krypton, electrons are ejected with a speed of
1.59M m/s.Calculate the ionization energy of krypton.
计算游离能怎麽会出现有速度的公式? 还是说游离能会等於1/2mv^2 ?
这题答案是 I = 14.0 eV
2. By differentiation of the 2s radial wavefunction, show that it has two
extrema in its amplitude, and locate them.
这一题答案是有两个 r = 4a0 、r = 0 计算过程是用到机率???
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◆ From: 114.137.67.125
※ 编辑: starwish07 来自: 114.137.67.125 (05/26 20:47)
※ 编辑: starwish07 来自: 114.137.67.125 (05/26 23:12)
1F：→ starwish07:第二题的第二个r是等於0 已修正 05/26 23:12
2F：推 kuanun:第2题把2s radial wavefunction个式子微分後等於0, 解r 05/26 23:56
3F：→ starwish07:解 "r" ? 怎麽解? 式子里面有个Z 这样答案也会有Z... 05/27 00:07
4F：→ SmArTyau:第一题是求功函数(W)吧 入射光的动能=W+电子动能 05/27 06:01