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Question
Consider aiming a beam of free electrons towards free protons. When they scatter, an electron and a proton cannot combine to produce a H-atom ______.
- because of energy conservation.
- without simultaneously releasing energy in the from of radiation.
- because of momentum conservation.
- because of angular momentum conservation.
Options
b and c
a and d
a and b
c and d
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Solution
a and b
Explanation:
A moving electron and proton cannot combine to produce an H-atom because of energy conservation and without simultaneously releasing energy in the form of radiation.
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