Page 1 of 1

9677 #41

Posted: Thu Oct 16, 2008 12:05 pm
by student2008
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).

Re: 9677 #41

Posted: Thu Oct 16, 2008 2:14 pm
by Helio
http://grephysics.net/ans/9677/41

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

Re: 9677 #41

Posted: Thu Oct 16, 2008 5:29 pm
by student2008
Yeah, I agree with these guys. But what about the official version? Has ETS announced the typo?

Re: 9677 #41

Posted: Thu Oct 16, 2008 9:07 pm
by Helio
ETS makes no mistakes.... how dare you accuse the gods

Re: 9677 #41

Posted: Thu Oct 16, 2008 9:54 pm
by Unnatural Log
I've always wanted to see the mysterious 9677 problem 90...

Re: 9677 #41

Posted: Thu Oct 16, 2008 10:09 pm
by tonyhongxp
Unnatural Log wrote:I've always wanted to see the mysterious 9677 problem 90...

strongly agree