Question

Reflection from a Step with E < V0: A beam of electrons, each with energy E=0.1V0...

Reflection from a Step with E < V0: A beam of electrons, each with energy E=0.1V0 , is incident on a potential step with V0 = 2 eV. This is of the order of magnitude of the work function for electrons at the surface of metals. Calculate and graph (at least 5 points) the relative probability |Ψ#|# of particles penetrating the step up to a distance x = 10-9 m, or roughly five atomic diameters. (Hint: assume A=1.)
Science   Advanced-Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Please upvote. Thank you.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A beam of electrons, each with energy E=0.1V0 , is incident on a potential step with...
A beam of electrons, each with energy E=0.1V0 , is incident on a potential step with V0 = 2 eV. This is of the order of magnitude of the work function for electrons at the surface of metals. Calculate and graph (at least 5 points) the relative probability |Ψ2|^2 of particles penetrating the step up to a distance x = 10-9 m, or roughly five atomic diameters. (Hint: assume A=1.)
A beam of 1,000,000 electrons, each with kinetic energy E = 1.0 eV, is incident on...
A beam of 1,000,000 electrons, each with kinetic energy E = 1.0 eV, is incident on a potential barrier with the height V0 = 7.0 eV. (a) How many electrons in the beam will be transmitted through the barrier if the barrier width a = 0.25 nm? (b) Answer the same question if the width is doubled, that is, a = 0.5 nm. (c) Briefly explain the effect of the barrier width in quantum tunneling, based on your results in...
For the arrangement of Figure (a) and Figure (b), electrons in the incident beam in region...
For the arrangement of Figure (a) and Figure (b), electrons in the incident beam in region 1 have energy E = 836 eV and the potential step has a height of U1 = 627 eV. What is the angular wavenumber in (a) region 1 and (b) region 2? (c) What is the reflection coefficient? (d) If the incident beam sends 5.60 × 105 electrons against the potential step, approximately how many will be reflected? (a)
a beam of electrons with kinetic energy 106 eV is incident on a 100 eV deep...
a beam of electrons with kinetic energy 106 eV is incident on a 100 eV deep potential well of width L. Is there any value of L that will lead to a 50% reflection ?
A beam of protons, each with energy E=20 MeV, is incident on a potential step 40...
A beam of protons, each with energy E=20 MeV, is incident on a potential step 40 MeV high. Graph using a computer the relative probability of finding protons at values of x > 0 from x = 0 to x = 5 fm. Please do not just copy the answer to this question that has been posted on Chegg all ready
A beam of particles is incident from the negative x direction on a potential energy step...
A beam of particles is incident from the negative x direction on a potential energy step at x = 0. When x < 0, the potential energy of the particles is zero, and for x > 0 the potential energy has the constant positive value U0. In the region x < 0, the particles have a kinetic energy K that is smaller than U0. What should the form of the wave function be in the region x > 0?
Particles with energy E, are incident from the left, on the step-potential of height V0 =...
Particles with energy E, are incident from the left, on the step-potential of height V0 = 2E as shown: a. What are the wave numbers in the two regions, 1 k and 2 k , in terms of E? b. Write down the most general solutions for the Schrodinger Equation in both regions? Identify, with justification, if any of the coefficients are zero. c. Write down the equations that result for applying the boundary conditions for the wave functions at...
1) 2 point charges are separated by a distance of 8 cm. The left charge is...
1) 2 point charges are separated by a distance of 8 cm. The left charge is 48 mC and the right charge is -16mC. Using a full sheet of paper: draw the 2 charges separated by 8cm, centered in the sheet. (if you are missing a ruler estimate 8cm as ⅓ a paper sheet length). [6] a) Draw field lines to indicate the electric fields for this distribution. [4] b) Draw 3 equipotential surfaces, 1 each, that pass: -Through the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT