Potential energy of a particle with one degree of freedom 0, x< 0 Uo changes in the form U(x)= x20 The particle with energy E> U, is located in region x<0, and Assuming that it moves in the x-axis direction (from left to right), the probability of the particle reflecting from the potential obstacle is given by the formula k, - k R = /2mE k, =- 2m(E – U.) k, k, + k, The electron beam with energy E=100 ev moves towards the potential step defined above in the x-axis direction. If 4% of the electrons are reflected, what is the height of the potential step in eV?

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Potential energy of a particle with one degree of freedom
0,
changes in the form U(x)=
x<0
x20
The particle with energy E>U, is located in region x<0,
and Assuming that it moves in the x-axis direction (from left to right), the
probability of the particle reflecting from the potential obstacle is given by the
formula
k, - k,
R =
2mE
2m(E – U.)
k, =
k2
|k, + k2|
The electron beam with energy E=100 ev moves towards the potential step
defined above in the x-axis direction. If 4% of the electrons are reflected, what
is the height of the potential step in eV?
Transcribed Image Text:Potential energy of a particle with one degree of freedom 0, changes in the form U(x)= x<0 x20 The particle with energy E>U, is located in region x<0, and Assuming that it moves in the x-axis direction (from left to right), the probability of the particle reflecting from the potential obstacle is given by the formula k, - k, R = 2mE 2m(E – U.) k, = k2 |k, + k2| The electron beam with energy E=100 ev moves towards the potential step defined above in the x-axis direction. If 4% of the electrons are reflected, what is the height of the potential step in eV?
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