Chapter 29, Problem 59PE

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

Chapter
Section

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

# The velocity of a proton emerging from a Van de Graaff accelerator is 25.0% of the speed of light. (a) What is the proton's wavelength? (b) What is its kinetic energy, assuming it is nonrelativistic? (c) What was the equivalent voltage through which it was accelerated?

To determine

(a)

What is the proton's wavelength?

Explanation

Given:

Speed of electron is vproton=0.25c=7.50Ã—107â€‰m/s

Formula used:

Using De Broglie formula,

â€ƒâ€ƒÎ»proton=hmprotonvproton

Calculation:

Inserting data given, we obtain

â€ƒâ€ƒÎ»proton=6

To determine

(b)

What is its kinetic energy, assuming it is not relativistic?

To determine

(c)

What was the equivalent voltage through which it was accelerated?

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