University Physics with Modern Physics, Volume 2 (Chs. 21-37); Mastering Physics with Pearson eText -- ValuePack Access Card (14th Edition)
14th Edition
ISBN: 9780134265414
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 40, Problem 40.30E
(a)
To determine
The tunneling probability of electron with kinetic energy of
(b)
To determine
The tunneling probability of electron with kinetic energy of
(c)
To determine
The tunneling probability of electron with kinetic energy of
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A thin solid barrier in the xy-plane has a 12.6µm diameter circular hole. An electron traveling in
the z-direction with vx
0.00m/s passes through the hole. Afterward, within what range is vx
likely to be?
A stream of electrons, each with a kinetic energy of 450 eV, is sent through a potential-free region toward a potential barrier of
"height" 500 eV and thickness 0.300 nm. The stream consists of 1 × 1015 electrons. How many should tunnel through the barrier? Pick
the closest answer. The electron mass is 9.10938 x 10-31 kg.
O 8 x 107
O 8 × 10⁹
3 x 10³
6 x 104
4x 107
4 x 105
O 1 x 106
O 7 x 104
Ⓒ 9 × 105
O 7 x 106
A beam of electrons is incident on a barrier that is 0.60 nm wide and 6.40 eV high. If the number of electrons striking the barrier each second is 6.50 ✕ 1021 /s with an energy of 5.35 eV, then how long would it take for a single electron to be transmitted through the barrier?
Chapter 40 Solutions
University Physics with Modern Physics, Volume 2 (Chs. 21-37); Mastering Physics with Pearson eText -- ValuePack Access Card (14th Edition)
Ch. 40.1 - Does a wave packet given by Eq. (40.19) represent...Ch. 40.2 - Prob. 40.2TYUCh. 40.3 - Prob. 40.3TYUCh. 40.4 - Prob. 40.4TYUCh. 40.5 - Prob. 40.5TYUCh. 40.6 - Prob. 40.6TYUCh. 40 - Prob. 40.1DQCh. 40 - Prob. 40.2DQCh. 40 - Prob. 40.3DQCh. 40 - Prob. 40.4DQ
Ch. 40 - If a panicle is in a stationary state, does that...Ch. 40 - Prob. 40.6DQCh. 40 - Prob. 40.7DQCh. 40 - Prob. 40.8DQCh. 40 - Prob. 40.9DQCh. 40 - Prob. 40.10DQCh. 40 - Prob. 40.11DQCh. 40 - Prob. 40.12DQCh. 40 - Prob. 40.13DQCh. 40 - Prob. 40.14DQCh. 40 - Prob. 40.15DQCh. 40 - Prob. 40.16DQCh. 40 - Prob. 40.17DQCh. 40 - Prob. 40.18DQCh. 40 - Prob. 40.19DQCh. 40 - Prob. 40.20DQCh. 40 - Prob. 40.21DQCh. 40 - Prob. 40.22DQCh. 40 - Prob. 40.23DQCh. 40 - Prob. 40.24DQCh. 40 - Prob. 40.25DQCh. 40 - Prob. 40.26DQCh. 40 - Prob. 40.27DQCh. 40 - Prob. 40.1ECh. 40 - Prob. 40.2ECh. 40 - Prob. 40.3ECh. 40 - Prob. 40.4ECh. 40 - Prob. 40.5ECh. 40 - Prob. 40.6ECh. 40 - Prob. 40.7ECh. 40 - Prob. 40.8ECh. 40 - Prob. 40.9ECh. 40 - Prob. 40.10ECh. 40 - Prob. 40.11ECh. 40 - Prob. 40.12ECh. 40 - Prob. 40.13ECh. 40 - Prob. 40.14ECh. 40 - Prob. 40.15ECh. 40 - Prob. 40.16ECh. 40 - Prob. 40.17ECh. 40 - Prob. 40.18ECh. 40 - Prob. 40.19ECh. 40 - Prob. 40.20ECh. 40 - Prob. 40.21ECh. 40 - Prob. 40.22ECh. 40 - Prob. 40.23ECh. 40 - Prob. 40.24ECh. 40 - Prob. 40.25ECh. 40 - Prob. 40.26ECh. 40 - Prob. 40.27ECh. 40 - Prob. 40.28ECh. 40 - Prob. 40.29ECh. 40 - Prob. 40.30ECh. 40 - Prob. 40.31ECh. 40 - Prob. 40.32ECh. 40 - Prob. 40.33ECh. 40 - Prob. 40.34ECh. 40 - Prob. 40.35ECh. 40 - Prob. 40.36ECh. 40 - Prob. 40.37ECh. 40 - Prob. 40.38ECh. 40 - Prob. 40.39ECh. 40 - Prob. 40.40ECh. 40 - Prob. 40.41ECh. 40 - Prob. 40.42PCh. 40 - Prob. 40.43PCh. 40 - Prob. 40.44PCh. 40 - Prob. 40.45PCh. 40 - Prob. 40.46PCh. 40 - Prob. 40.47PCh. 40 - Prob. 40.48PCh. 40 - Prob. 40.49PCh. 40 - Prob. 40.50PCh. 40 - Prob. 40.51PCh. 40 - Prob. 40.52PCh. 40 - Prob. 40.53PCh. 40 - Prob. 40.54PCh. 40 - Prob. 40.55PCh. 40 - Prob. 40.56PCh. 40 - Prob. 40.57PCh. 40 - Prob. 40.58PCh. 40 - Prob. 40.59PCh. 40 - Prob. 40.60PCh. 40 - Prob. 40.61PCh. 40 - Prob. 40.62PCh. 40 - Prob. 40.63PCh. 40 - Prob. 40.64CPCh. 40 - Prob. 40.65CPCh. 40 - Prob. 40.66CPCh. 40 - Prob. 40.67PPCh. 40 - Prob. 40.68PPCh. 40 - Prob. 40.69PPCh. 40 - Prob. 40.70PP
Knowledge Booster
Similar questions
- (a) If the position of an electron in a membrane is measured to an accuracy of 1.00 m, what is the electron's minimum uncertainty in velocity? (b) If the electron has this velocity, what is its kinetic energy in eV? (c) What are the implications of this energy, comparing it to typical molecular binding energies?arrow_forward8. Consider a potential barrier defined by 0 U(x)=Uo 0 T= x L with Up = 1.00 eV. An electron with energy E> 1 eV moving in the positive - direction is incident on this potential. The transmission probability for this situation is given by 4(E/U₁) [(E/U₁)-1] sin² √2m(E-Uo) L/h +4(E/Uo) [(E/U₁) - 1] It is found that the reflection probability is zero for E= 1.10 eV and non-zero for smaller incident energies. What is the width of the potential barrier L?arrow_forwardThe probability density function (PDF) for electrons to be detected on the x-axis between 0 nm and 1.0 nm is shown below. What is the probability of finding the electron between x = 0.5 nm and x = 1.0 nm? |w(x)* (nm') 2.0 1.0 0.5 x (nm) 1.0arrow_forward
- Electrons, thermionically emitted from a cathode in a vacuum valve, travel across a potential difference of 1000V to the anode. What is the velocity of the electrons as a fraction of the velocity of light, c, when they reach the anode? Select one: а. 0.004c b. 0.13c С. 0.063c d. 0.02carrow_forward13.a. In a Compton scattering, a photon of wavelength (439) nm is collided with an electron and scattered through an angle (69)°. Calculate the energy transferred to the electron in this collision. b. A rectangular block of copper having dimensions (20.5) cm × (20.5) cm × (49) cm. If the resistivity (?) of copper is 17.2 n Ω?, determine its resistance.arrow_forwardThe energy of a proton is 1.0 MeV below the top of a 6.8-fm-wide energy barrier. What is the probability that the proton will tunnel through the barrier? (1 eV = 1.60 × 10-19 J, mproton = 1.67 × 10-27 kg, ħ = 1.055 × 10-34 J ∙ s, h = 6.626 × 10-34 J ∙ s)arrow_forward
- An electron is confined to a one-dimensional region in which its ground-state (n = 1) energy is 1.45 eV. (a) What is the length L of the region? nm(b) What energy input is required to promote the electron to its first excited state? eVarrow_forwardTrue or False Questions : Non-conducting materials can be studied by scanning tunneling microscope(STM). 0 True 0 False Backscattered electron detection should be employed to detect different phases in a material. 0 True 0 False Backscattered electrons are analyzed by TEM. 0 True 0 False IR spectroscopy is used to determine functional groups/bonding in molecules. 0 True 0 False Backscattered electrons have lower energy than secondary electrons. 0 True 0 False Secondary electrons are used in SEM. 0 True 0 False Energy dispersive spectroscopy (EDS) analyzes x-rays. 0 True 0 False XRD peaks broaden as nanoparticle size decreases. 0 True 0 False X-ray diffraction (XRD) peak position shifts to higher 29 angles as the distance between adjacent crystal planes increases. 0 True 0 False scanning electron microscopy (SEM) exhibits higher resolution than transmission electron microscopy (TEM) 0 True O False The G-band in a Raman spectrum of CNTs is attributed to defects. 0 True O False EDS…arrow_forwardElectron diffractometers help us understand the structure of matter. Material is covered in an array of parallel nano-scale metal wires with unknown spacing. A beam of electrons, accelerated through a potential of 20.80 kV produces a pattern of electron impacts on a distant screen with a central bright peak with two smaller peaks. The angular position of the smaller peaks is 25.20 degrees relative to the central peak. What is the spacing of the wires? You may treat the electron as non-relativistic. (Answer in meters)arrow_forward
- We can approximate an electron moving in a nanowire (a small, thin wire) as a one-dimensional infi nite square-well potential. Let the wire be 2.0 μm long. The nanowire is cooled to a temperature of 13 K, and we assume the electron’s average kinetic energy is that of gas molecules at this temperature ( 3kT/2). (a) What are the three lowest possible energy levels of the electrons? (b) What is the approximate quantum number of electrons moving in the wire?arrow_forwardYou are trying to measure the position and velocity of an electron. For some reason, you are very interested in finding its accurate location--the biggest error you can allow in position is 1.20 nm. How much minimum error in speed would you need to allow? 8.79 x 10-26 m/s O9.65 x 10-5 m/s O 9.65 x 104 m/s O 8.79 x 105 m/sarrow_forwardPulsed lasers are very similar to regular lasers, except they don't continuously emit laser light. Baby spice is looking at one on Ebay, and she finds a pulsed He-Ne laser that emits a cylindrical beam of light with a diameter of 0.750 cm. Each pulse lasts for 1.30 ns, and each burst contains an amount of energy equal to 3.00 J. Baby Spice has the following questions about this laser. (a) What is the length of each pulse of laser light? m (b) What is the average energy per unit volume for each pulse? J/m³arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax