Chapter 29, Problem 58PE

### 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

# (a) Calculate the velocity of an electron that has a wavelength of 1.00 μm . (b) Through what voltage must the electron be accelerated to have this velocity?

To determine

(a)

The velocity of an electron that has a wavelength of 1.00μm.

Explanation

Given:

Wavelength of electron is Î»electron=1.00â€‰Î¼m

Formula used:

Using De Broglie formula,

â€ƒâ€ƒvelectron=hmelectronÎ»electron

Calculation:

Inserting data given, we obtain

â€ƒâ€ƒvelectron=6.63Ã—10âˆ’34Jâ‹…s(9

To determine

(b)

Through what voltage must the electron be accelerated to have this velocity?

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