تم الحل ✓
categoryفيزياء
schoolبكالوريوس
event_available2026-07-14
السؤال
Transcribed Image Text:
Consider the finite potential barrier as shown in the figure.
V(x)
v=U,
Vo
k-
d
V=O
x
(a) Calculate the transmission probability T for a particle of mass m incident from the left with
energy E in the limit T <<1 (15 pts). Hint: If T<<1, the incident wave is reflected at x = 0 as if the
barrier were infinitely thick. Write out the solutions for x < 0 and 0 <x<d to calculate T.
(b) If the energy of the electron is E = 1 eV and the barrier height Vo = 2 eV, how wide must be the
barrier so that the transmission probability is 10? (5 pts). electron mass = 9.10938188 x 1031 kg
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