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--- classes:2009:fall:phys4101.001:q_a_1009 [2009/10/12 17:57] – x500_sohnx020
+++ classes:2009:fall:phys4101.001:q_a_1009 [2009/10/22 12:21] (current) – czhang
@@ Line 171: / Line 171: @@
 I may have made some mistakes like where 2pi goes, so please carefully check if you are interested in this issue.
+=== Can 10/21 10:52am ===
+For Yuichi, instead of saying A^2 is probability, I think it would make much more sense if we think of A^2 as incident intensity, just my personal opinion not sure if it is rigorous. Recall that the square of the amplitude of for E field is proportional to the intensity , E^2 is proportional to I, same analogy can be made here, then the probability can be interpreted as transmitted intensity versus incident intensity. <math>T=\frac{F^2}{A^2}</math>. At least, I think this might be easier to understand transmission intuitively, maybe not mathematically, one still has to work out all the math.
@@ Line 176: / Line 182: @@
 Why is k a known for a scattering problem?
+===Can 10/22 12:15pm ===
+Since for scattering problem <math>E=\frac{h^2k^2}{2m}</math> which means <math>k=\frac{\sqrt{2mE}}{h}</math>, and E is the incident energy of the particle, which can be manually tuned. E is known , so k is known.
 ====Aspirin 10/12, 2:30pm====