Chapter 29, Problem 50PE

### 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

# What is the wavelength of an electron moving at 3.00% of the speed of light?

To determine

The wavelength of an electron moving at 3.00% of the speed of light

Explanation

Given info:

â€ƒâ€ƒh=6.63Ã—10âˆ’34Â Js-1

â€ƒâ€ƒcâ‰ˆ3.0Ã—108Â msâˆ’1

Formula used:

For momentum in electron, the relation between momentum and wavelength is

â€ƒâ€ƒpâ‰ˆhÎ»

Or

â€ƒâ€ƒÎ»â‰ˆhp

Or

â€ƒâ€ƒpâ‰ˆmv

Calculation:

Velocity of electron moving is 3% of velocity of light, we get

â€ƒâ€ƒvâ‰ˆ3%Ã—cvâ‰ˆ3100Ã—3Ã—108vâ‰ˆ9Ã—106Â msâˆ’1

Substituting the given values momentum of electron, we get

â€ƒâ€ƒpâ‰ˆ9

### Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

#### The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started