The work function of cesium is 2.1 eV. ▾ Part A Determine the lowest frequency photon that can eject an electron from cesium. Express your answer with the appropriate units. Templates Symbols undo' rego Teset keyboard shortcuts Help Value Units Request Answer Part B Determine the maximum possible kinetic energy in electron volts of a photoelectron ejected from the metal that absorbs a 320-nm photon. Express your answer in electronvolts. Templates Symbols undo' redo Teset keyboard shortcuts Help Kmax= eV f= Submit

The work function of cesium is 2.1 eV. ▾ Part A Determine the lowest frequency photon that can eject an electron from cesium. Express your answer with the appropriate units. Templates Symbols undo' rego Teset keyboard shortcuts Help Value Units Request Answer Part B Determine the maximum possible kinetic energy in electron volts of a photoelectron ejected from the metal that absorbs a 320-nm photon. Express your answer in electronvolts. Templates Symbols undo' redo Teset keyboard shortcuts Help Kmax= eV f= Submit

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter3: The Quantum Theroy Of Light

Section: Chapter Questions

Problem 42P

See similar textbooks

Similar questions

A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of λ = 169.8 nm. ▼ Part A What is the atom's final speed if it now emits an identical photon in a direction that is perpendicular to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. .0 Value Submit ΜΑ Part B Units Request Answer μA What is the atom's final speed if it now emits an identical photon in a direction that is opposite to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. ? Q Search P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | ט 7:22 12/11/2
Find a simulation that will allow you to perform the photoelectric experiment virtually. Sketch a graph for each of the following relationships (controlled variables in parentheses): C. Maximum kinetic energy of the photoelectrons and frequency in order to determine both the work function for the metal and Planck's constant (metal and intensity). Questions for further analysis based on the three relationships investigated: C. Maximum Kinetic Energy of the Photoelectrons and Frequency a) What is the relationship between retarding potential and the kinetic energy of the emitted photoelectrons? b) What is the relationship between the kinetic energy of the photoelectrons and frequency? c) Determine the values and discuss the significance of the following features of the graph of kinetic energy vs. frequency: vertical axis intercept, horizontal axis intercept, and slope. d) Which metal investigated had the highest threshold frequency? What is the wavelength and energy (in eV) of this…
Determine the energy of a 891 nm photon in eV. Express your answer in three decimal places.
Calculate the energy of a 800 nm photon. b. Find the wavelength and frequency of a 80-MeV photon. Given that the maximum wavelength for photoelectric emission in tungsten is 230 nm, what wavelength of light must be used to eject electrons with a maximum energy of 1.6 eV?
Calculate the wavelength of a photon emitted when singly ionized helium (He+) transitions from the n = 3 to n = 2 state. The emitted photon has a wavelength of 0.164 nm. A photon is emitted when doubly ionized helium (He++) recombines with an electron to form He+ in the n = 2 state. How does the wavelength of the resulting photon compare to the answer from the previous problem? A. The wavelength is longer in this case because the change in energy (ΔE) is smaller. B. The wavelength is shorter in this case because the change in energy (ΔE) is smaller. C. The wavelength is longer in this case because the change in energy (ΔE) is greater. D. The wavelength is shorter in this case because the change in energy (ΔE) is greater. E. The wavelength is the same because both cases end with He+ in the n = 2 state.
Establish the relevant theoretical model: 1. Write down the two equations giving the maximum kinetic energy of the electrons ejected by the photoelectric effect. 2. Use these two equations to obtain the expression for the stopping potential delta V as a function of e, h, f and phi. 3. Is the relationship between delta V and f linear? If not, linearize it. What do the slope and y-intercept of your line represent? 4. How will you use the data from the linear regression to calculate the value of Planck's constant h and the work of extraction phi?
how would you answer this? The maximum kinetic energy of photoelectrons is plotted as a function of the frequency of incident light. The slope of this graph is.. would appreciate work shown for this question, thanks a Planck’s constant. b Rydberg’s constant. c Coulomb’s constant. d Newton’s gravitational constant.
Solve using GUESS method. Atomic and Nuclear Phenomena 2. The work function of a metal is 2.6 eV. What is the longest wavelength of radiation that can eject a photoelectron from this metal?
The formula for the distribution function of the photon statistic (or Planck statistic) is similar to that of the Bose-Einstein statistical distribution function, but not exactly the same. a. What's the difference? b. What is the physical meaning of the difference?
Current Time.03.31 1. A magnesium surface has a work function of 3.10 eV. Electromagnetic waves with a wavelength of 200 nm strike the surface and eject electrons. Find the maximum kinetic energy of the ejected electrons. Express your answer in electron volts. eV 16xet16
Determine the maximum wavelength of thephoton that hydrogen in the excited stateni = 6 can absorb. The energy of the groundstate of hydrogen is −13.6 eV, the speed oflight is 2.99792 × 10^8 m/s and Planck’s constant is 6.62607 × 10^−34 J · s.Answer in units of nm. What would be the next smaller wavelengththat would work?Answer in units of nm.
Establish the relevant theoretical model:1. Write the two equations giving the maximum kinetic energy of the electrons ejected by the photoelectric effect.2. Use these two equations to obtain the expression for the stopping potential ΔVarr as a function of e, h, f and ø.3. Is the relationship between ΔVarr and f linear? If not, linearize it. What do the slope and y-intercept of your line represent?4. How will you use the data from linear regression to calculate the value of the Planck constancy h as well as the work of extraction ø?