College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 27 - Multiple-Choice Questions - Page 1040: 6


The correct answer is: (c) $\frac{hc}{\phi}$

Work Step by Step

If the work function is $\phi$, we can find an expression for the threshold wavelength: $hf = \phi$ $\frac{hc}{\lambda} = \phi$ $\lambda = \frac{hc}{\phi}$ The correct answer is: (c) $\frac{hc}{\phi}$
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