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23 Nov 2019

Electron microscopes use the wave characteristic of fast electrons.The electrons are accelerated in an electric field which is createdby a potential difference of a few 10 kV for scanning electronmicroscopes and 100 –200 kV for transmission electron microscopes.Note: At these voltages the electrons are alreadyrelativistic.
Calculate the de Broglie wavelength of electrons in an electronmicroscope which was accelerated to a speed of 1000 km/s.

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Jean Keeling
Jean KeelingLv2
11 Apr 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

3. a) Show that the phase velocity of the de Broglie waves of aparticle of mass m and de Broglie wavelength ? is given by .
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