Physics · Quantum Mechanics
A particle in a spherically symmetric potential is in an eigenstate of L2 and Lz with eigenvalues l(l + 1)ℏ2 and mℏ, respectively. What is the expectation value ⟨l, m| Lx2 |l, m⟩?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ℏ22 (l2 + l + m2)
- 2ℏ2 (l2 + l - m2)
- 3ℏ22 (l2 - l - m2)
- 4ℏ22 (l2 + l - m2)✓
Correct answer
ℏ22 (l2 + l - m2)
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