A proton traveling at a speed of 4.5 x 104 m/s is accelerated through a potential difference

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A proton traveling at a speed of 4.5 x 104 m/s is accelerated through a potential difference of 37 V.
(a) Will its de Broglie wavelength (1) increase, (2) remain the same, or (3) decrease, due to the potential difference? Why?
(b) By what percentage does the de Broglie wave-length of the proton change?
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College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

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