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← ScienceWhich constraint causes inaccuracies when measuring electron spin using Stern-Gerlach?
A)Heisenberg uncertainty principle limits precision✓
B)Zeeman effect masks spin observation
C)Thermal noise overwhelms spin signal
D)Electron charge attracts stray particles
💡 Explanation
The Heisenberg uncertainty principle limits simultaneous precision of conjugate variables on the electron, because position and spin are related. Therefore spin measurements have inherent inaccuracies, rather than inaccuracy because of the Zeeman effect if an external magnetic field masks it.
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