9677 #41

Post Reply
student2008
Posts: 4
Joined: Thu Oct 16, 2008 11:55 am

9677 #41

Post by student2008 » Thu Oct 16, 2008 12:05 pm

I apologize if someone asked about it before, but I'd like to know if there's the typo in this problem in the official materials printed by ETS? Shouldn't the $3P_{3/2}$ be $2P_{3/2}$, since there's only one electron (and thus S=1/2, 2S+1=2)? Because, if there're TWO electrons, the official solution (A) is erroneous (the spin in the electric dipole transitions can't change).

User avatar
Helio
Posts: 809
Joined: Thu Mar 15, 2007 7:11 pm

Re: 9677 #41

Post by Helio » Thu Oct 16, 2008 2:14 pm

http://grephysics.net/ans/9677/41

they say it is a typo. in the exam i doubt you will hunt down the answer

student2008
Posts: 4
Joined: Thu Oct 16, 2008 11:55 am

Re: 9677 #41

Post by student2008 » Thu Oct 16, 2008 5:29 pm

Yeah, I agree with these guys. But what about the official version? Has ETS announced the typo?

User avatar
Helio
Posts: 809
Joined: Thu Mar 15, 2007 7:11 pm

Re: 9677 #41

Post by Helio » Thu Oct 16, 2008 9:07 pm

ETS makes no mistakes.... how dare you accuse the gods

User avatar
Unnatural Log
Posts: 45
Joined: Fri Aug 15, 2008 4:07 pm

Re: 9677 #41

Post by Unnatural Log » Thu Oct 16, 2008 9:54 pm

I've always wanted to see the mysterious 9677 problem 90...

tonyhongxp
Posts: 12
Joined: Thu Oct 16, 2008 9:36 pm

Re: 9677 #41

Post by tonyhongxp » Thu Oct 16, 2008 10:09 pm

Unnatural Log wrote:I've always wanted to see the mysterious 9677 problem 90...
strongly agree



Post Reply