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※ 引述《wadelin (阿德 ￾N )》之銘言: : 作業6中 : 助教給ㄉ答案中 : 第六題ㄉb 這題主要的意思是說 這個module是不適用 需要考慮相對論 而解答中只是粗略的算 L = rmRv = nh(bar) where r = 1/(1- square of B)1/2 ,B =v/c & R is redius KZq2/R2 = mv2/R => (1+B2/2)B = Z/137 ^^^^ From this term we can see there is some error overhere. :& 第七題ㄉb delta X : root mean square of X delta Px : root mean square of Px delta Ee = delta Px2/2Me where Me is the mass of electron delta En = delta Px2/2Mn where Mn is the mass of neutron and Mn = 1837*Me so delta En = Ee/1837 #supplement: What's the physics of this problem7 ?? First point : delta Ee > nuclear energy levels Show the electron is unstable in nucleus. Second point: delta En < nuclear energy levels Show the neutron is stable in nucleus. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.101.46