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College Physics

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

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BuyFindarrow_forward

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:

  h=6.63×1034 Js-1

  c3.0×108 ms1

Formula used:

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

  phλ

Or

  λhp

Or

  pmv

Calculation:

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

  v3%×cv3100×3×108v9×106 ms1

Substituting the given values momentum of electron, we get

  p9

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