Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 31 - Think and Discuss: 73


Planck’s constant h would be much greater than its present value.

Work Step by Step

The size of a quantum of light energy is hf. If photons were to become very energetic, that would be akin to taking the limit as h became very large. In the same way, the de Broglie wavelength of massive particles, h/p, would also grow. The uncertainty principle (page 593) would also start to inhibit our everyday measurements. In short, in a world with dominant quantum effects, Planck’s constant h would be much greater. A delightful book called "The New World of Mr. Tompkins" describes such a world. It is part of a 4-book series by the late renowned physicist, George Gamow.
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