- #1
asadpasat
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Homework Statement
How close does the alpha particle gets to the nucleus in gold foil scatering experiment?
Homework Equations
Ek = 2.0 MeV
W=F delta x
F=(kq1q2)/r^2
W=(kq1q2)/r
E=W=(kq1q2)/r
The Attempt at a Solution
E= (k(79)(2) e^2)/r
2.0MeV= (k(158)e^2)/r
2,000,000 eV = 8.99 Wm^2 c^-2 ((158) e^2) / r
2,000,000 eV convert by multiplying by 1.6 x 10^-19 J/ eV
r = 8.99 x10^ 9 Nm^2/c^2 (158) (1.6x 10^-19 c)^2 / 2,000,000 ev
r = 1.13 x 10^-13
I made somewhere mistake as the answer should be around 4 not 1.13 .
Any input appreciated