University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 39 - Particles Behaving as Waves - Problems - Exercises - Page 1318: 39.75


See explanation.

Work Step by Step

a. Find the speed for you to have a 1-meter wavelength. $\lambda=\frac{h}{p}=\frac{h}{mv}$ $v =\frac{h}{m \lambda }= \frac{6.626\times10^{-34}J \cdot s}{(60kg)(1.0m)}= 1.1\times10^{-35}m/s $ b. $t=\frac{0.80m}{v}=7.24\times10^{34}s=2.3\times10^{27}y$ You take just a few seconds to walk through a doorway. You will not experience diffraction effects.
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