The Uncertainty in the position of an
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The Uncertainty in the position of an
electron is 50 pm or about the radius of a hydrogen atom.What is the uncertainty in the measurement of
the momentum for that electron?2.1
X 10-21
kgm/s 感觉求不出确定值啊 麻烦给出过程
electron is 50 pm or about the radius of a hydrogen atom.What is the uncertainty in the measurement of
the momentum for that electron?2.1
X 10-21
kgm/s 感觉求不出确定值啊 麻烦给出过程
根据不确定原理,(delta x) (delta p) hbar/2
用hbar/2除以delta x=50x10^-12m就可以了
约为1.05x10^-24吧
hbar是1.05x10^-34
再问: 公式中的不是大于等于吗? 上面我那个答案做得出来吗?
再答: 是>=,当我们估算的时候可以这样估算,公式就是这样hbar/delta(x),那个2也没关系 数字你验证下
再问: 我们老师给出的答案就是上面那个 我凑不出来啊
再答: 我觉得他算错了, hbar/delta(x)=1.05x10^-34 / 50x10^-12 =2.1x10^-24
用hbar/2除以delta x=50x10^-12m就可以了
约为1.05x10^-24吧
hbar是1.05x10^-34
再问: 公式中的不是大于等于吗? 上面我那个答案做得出来吗?
再答: 是>=,当我们估算的时候可以这样估算,公式就是这样hbar/delta(x),那个2也没关系 数字你验证下
再问: 我们老师给出的答案就是上面那个 我凑不出来啊
再答: 我觉得他算错了, hbar/delta(x)=1.05x10^-34 / 50x10^-12 =2.1x10^-24
in the position of
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