calculate the de Broglie wavelength of electrons accelerated through 50kV. (b) Is the relativistic correction important? 19.2 Electron microscopes can obtain images with much higher resolution than optical microscopes because of the short wavelength obtainable from a beam of electrons. For electrons moving at speeds close to c, the speed of light, the expression for the de Broglie wavelength (eqn 7A.11, 1= h/p) needs to be corrected for relativistic effects: h 2m eAq 1+ 2m.c where c is the speed of light in vacuum and Aø is the potential difference through which the electrons are accelerated. (a) Use the expression above to
calculate the de Broglie wavelength of electrons accelerated through 50kV. (b) Is the relativistic correction important? 19.2 Electron microscopes can obtain images with much higher resolution than optical microscopes because of the short wavelength obtainable from a beam of electrons. For electrons moving at speeds close to c, the speed of light, the expression for the de Broglie wavelength (eqn 7A.11, 1= h/p) needs to be corrected for relativistic effects: h 2m eAq 1+ 2m.c where c is the speed of light in vacuum and Aø is the potential difference through which the electrons are accelerated. (a) Use the expression above to
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter5: Electron Configurations And The Periodic Table
Section: Chapter Questions
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Transcribed Image Text:calculate the de Broglie wavelength of electrons accelerated through 50kV.
(b) Is the relativistic correction important?
19.2 Electron microscopes can obtain images with much higher resolution
than optical microscopes because of the short wavelength obtainable from a
beam of electrons. For electrons moving at speeds close to c, the speed of light,
the expression for the de Broglie wavelength (eqn 7A.11, 1= h/p) needs to be
corrected for relativistic effects:
h
2m eAq
1+
2m.c
where c is the speed of light in vacuum and Aø is the potential difference
through which the electrons are accelerated. (a) Use the expression above to
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