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As part of an electron diffraction experiment, electrons are accelerated from rest across a potential difference of 100 V.  The beam of electrons is then directed at a diffraction grating with 1000 lines/mm, and the resulting pattern is detected on a phosphorescent screen 0.25 m away from the grating. a) whats the speed of the electrons as they reach the diffraction grating? b) whats the wavelength of the electrons? c) what is the distance at which one would observe the 2nd maxima on the screen, as measured from the central maxima?

As part of an electron diffraction experiment, electrons are accelerated from rest across a potential difference of 100 V.  The beam of electrons is then directed at a diffraction grating with 1000 lines/mm, and the resulting pattern is detected on a phosphorescent screen 0.25 m away from the grating. a) whats the speed of the electrons as they reach the diffraction grating? b) whats the wavelength of the electrons? c) what is the distance at which one would observe the 2nd maxima on the screen, as measured from the central maxima?

Physics for Scientists and Engineers with Modern Physics
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter41: Atomic Physics
Section: Chapter Questions
Problem 34P
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As part of an electron diffraction experiment, electrons are accelerated from rest across a potential difference of 100 V.  The beam of electrons is then directed at a diffraction grating with 1000 lines/mm, and the resulting pattern is detected on a phosphorescent screen 0.25 m away from the grating.

a) whats the speed of the electrons as they reach the diffraction grating?

b) whats the wavelength of the electrons?

c) what is the distance at which one would observe the 2nd maxima on the screen, as measured from the central maxima?

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