Concept explainers
(a) To determine:
Maximum kinetic energy of electrons.
Answer to Problem 23P
Solution:
Maximum kinetic energy of electrons is .
Explanation of Solution
Given:
Work function of barium,
Minimum
Formula used:
The maximum energy of the photon is calculated as
Here,
is the charge of electron
is the Planck’s constant
is the speed of light
is the wavelength
Calculation:
The maximum energy of the photon is calculated as
Plugging the values in the above equation
Since the work function of the metal is , so the kinetic energy of the electron is
(b) To determine:
Maximum speed of the electron
Answer to Problem 23P
Solution:
Maximum speed of the electron is .
Explanation of Solution
Given:
Work function of barium,
Minimum wavelength of UV light,
Formula used:
The kinetic energy is given by the formula
Here,
is the mass of the electron
is the velocity of the electron
Calculation:
The velocity of the electron is calculated as
Plugging the values in the above equation
Chapter 27 Solutions
Physics: Principles with Applications
Additional Science Textbook Solutions
Life in the Universe (4th Edition)
College Physics: A Strategic Approach (3rd Edition)
Physics for Scientists and Engineers with Modern Physics
The Cosmic Perspective Fundamentals (2nd Edition)
Essential University Physics: Volume 1 (3rd Edition)
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON