Homework Help is Here – Start Your Trial Now!
Science
Advanced Physics
electron tunnels through the barrier?

electron tunnels through the barrier?

Question
An electron with kinetic energy E = 5.50 eV is incident on a barrier of width L = 0.190 nm and height U = 10.0 eV. Energy 0 (a) What is the probability that the electron tunnels through the barrier? (Use 9.11 × 10-31 kg for the mass of an electron, 1.055 × 10¯³4 J · s for h, and note that there are 1.60 × 10¯ % (b) What is the probability that the electron is reflected? % What If? For what value of U (in eV) would the probability of transmission be exactly 25.0% and 50.0%? (c) 25.0% (d) 50.0% eV eV -19 J per eV.)
Transcribed Image Text:An electron with kinetic energy E = 5.50 eV is incident on a barrier of width L = 0.190 nm and height U = 10.0 eV. Energy 0 (a) What is the probability that the electron tunnels through the barrier? (Use 9.11 × 10-31 kg for the mass of an electron, 1.055 × 10¯³4 J · s for h, and note that there are 1.60 × 10¯ % (b) What is the probability that the electron is reflected? % What If? For what value of U (in eV) would the probability of transmission be exactly 25.0% and 50.0%? (c) 25.0% (d) 50.0% eV eV -19 J per eV.)
Expert Solution
steps

Step by step

Solved in 4 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer