Modern Physics
Modern Physics
3rd Edition
ISBN: 9781111794378
Author: Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher: Cengage Learning
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Chapter 3, Problem 21P

(a)

To determine

The work function of sodium.

(b)

To determine

The ratio (h/e).

(c)

To determine

The cut-off wavelength.

(d)

To determine

Percentage difference between calculated value and the accepted value.

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Monochromatic light from a laser shines onto a gold surface and produces photoelectrons with maximum kinetic energy KEmax = 3 eV. What is the wavelength of the laser light? Assume a work function of 5.10 eV for gold.Please give your answer in units of nm, rounded to 1 decimal place. I.e, the answer you should enter should have the form: XX.X nm.
Problem 4: a. For Compton scattering, what photon scattering angle provides the maximum possible kinetic energy to the electron? (Please explain your answer. Hint: What angle 6 makes the wavelength difference as large as possible?) b. In this case where the electron gains the maximum kinetic energy, if the wavelength of the incident photon was 0.004960 nm, what kinetic energy did the electron gain?
a) The work function for silver is 4.7 eV. Define the work function, in words. b) Calculate the maximum kinetic energy, in eV, of electrons ejected when UV light of wavelength 200 nm is incident on silver in a Photoelectric Effect experiment.
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