Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 38 - Quantization - Conceptual Questions - Page 1113: 6

Answer

The electrons from metal 1 have a lower speed than the electrons from metal 2.

Work Step by Step

We can write an expression for the maximum kinetic energy of the electrons: $K_{max} = \frac{h~c}{\lambda} - E_0$ Note that $E_0$ is the work function. If the work function of metal 1 is greater than the work function of metal 2, the electrons from metal 1 will have a lower kinetic energy then the electrons from metal 2. It follows that the electrons from metal 1 have a lower speed than the electrons from metal 2.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.