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Chery Chery
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Posts: 3587
7 years ago
The spacing of the atoms of a crystal is 159 pm. A monoenergetic beam of neutrons directed normally at the surface of the crystal undergoes first order diffraction at an angle of 58° from the normal. What is the energy of each of the neutrons? (mneutron = 1.675 × 10-27 kg, 1 eV = 1.6 × 10-19 J, h = 6.626 × 10-34 J ∙ s)
A) 0.045 eV
B) 0.039 eV
C) 0.050 eV
D) 0.056 eV
E) 0.061 eV
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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slicealemonslicealemon
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Posts: 930
7 years ago
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Chery Author
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7 years ago
Looked all over the internet for this, thank you for answering correctly
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7 years ago
Let me know if there's anything else bothering you, in fact, add me as a friend
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