Answer
It becomes shorter.
Work Step by Step
Momentum is p = mv. As the proton's velocity increases, its momentum also increases. The de Broglie wavelength is h/p, so as momentum p increases, the proton's wavelength becomes shorter.
Conceptual Physics (12th Edition)
by Hewitt, Paul G.
Published by
Addison-Wesley
ISBN 10:
0321909100
ISBN 13:
978-0-32190-910-7
Chapter 31 - Think and Discuss - Page 599: 71
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