Conceptual Physics (12th Edition)

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

Chapter 32 - Think and Explain - Page 613-614: 30


The particle nature. The wave nature.

Work Step by Step

The photoelectric effect, as discussed on page 587, provides conclusive evidence that light and electrons have a particle nature. The discreteness of Bohr energy levels, as explained on pages 608-609, is best explained by the wave nature of electrons. According to the de Broglie model, the circumference of the electron’s orbit equals a whole number of electron wavelengths.
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