3 J-values

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  • March 7, 2021 at 12:41 pm #3622 Score: 0
    Judith Vankeirsbilck
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    If you draw L and S as vectors of length 1 it is obvious that when L and S are parallel and in the same direction, J=L+S=2. If they are perpendicular, J=L+S=1. If they are parallel and pointing in the opposite direction, J=0 (the vectors cancel eachother).

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