又一道物理题,英文版,Consider an electron trapped in an infinite well whose width is 98.5pm .If it is in a state with n=15,what are (a)its energy(b)The uncertainty in its momentum(c)The uncertainty in its position.最好有个方程,好看
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 07:15:12
![又一道物理题,英文版,Consider an electron trapped in an infinite well whose width is 98.5pm .If it is in a state with n=15,what are (a)its energy(b)The uncertainty in its momentum(c)The uncertainty in its position.最好有个方程,好看](/uploads/image/z/8837413-61-3.jpg?t=%E5%8F%88%E4%B8%80%E9%81%93%E7%89%A9%E7%90%86%E9%A2%98%2C%E8%8B%B1%E6%96%87%E7%89%88%2CConsider+an+electron+trapped+in+an+infinite+well+whose+width+is+98.5pm+.If+it+is+in+a+state+with+n%3D15%2Cwhat+are+%28a%29its+energy%28b%29The+uncertainty+in+its+momentum%28c%29The+uncertainty+in+its+position.%E6%9C%80%E5%A5%BD%E6%9C%89%E4%B8%AA%E6%96%B9%E7%A8%8B%EF%BC%8C%E5%A5%BD%E7%9C%8B)
又一道物理题,英文版,Consider an electron trapped in an infinite well whose width is 98.5pm .If it is in a state with n=15,what are (a)its energy(b)The uncertainty in its momentum(c)The uncertainty in its position.最好有个方程,好看
又一道物理题,英文版,
Consider an electron trapped in an infinite well whose width is 98.5pm .If it is in a state with n=15,what are (a)its energy(b)The uncertainty in its momentum(c)The uncertainty in its position.
最好有个方程,好看一点
又一道物理题,英文版,Consider an electron trapped in an infinite well whose width is 98.5pm .If it is in a state with n=15,what are (a)its energy(b)The uncertainty in its momentum(c)The uncertainty in its position.最好有个方程,好看
间距d是半波长的整数倍,这里波长是电子的德布罗意波长.
电子的动量大小就是p=h/波长
这个整数倍n=15这里.
然后E=p^2/2m就得到了第一问
b:动量不确定度是2p.因为电子动量大小固定,但是方向可能相反.
c位置不确定度是98.5pm,因为它在这个区间都可能出现.你也可以用波函数把位置的均方误差求出来,是一个量级的.
然后动量不确定度和位置不确定度的乘积是大于h的.