Conceptual Physics (12th Edition)

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

Chapter 31 - Think and Discuss: 73

Answer

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.
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.