Q76 · CSIR NET Chemistry, June 2016
Paper: CSIR NET June 2016 · Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Postulates Operators · Marks: 2 · Difficulty: Medium
For a hermitian operator A, which does NOT commute with the Hamiltonian H, let $\psi_1$ be an eigenfunction of A and $\psi_2$ be an eigenfunction of H. The correct statement regarding the average of A and value of the commutator of A with H ([A,H]) is
(a)both $\psi_1 [A, H] \psi_1$ and $\psi_2 [A, H] \psi_2$ are non-zero
(b)only $\psi_1 [A, H] \psi_1$ is zero, but $\psi_2 [A, H] \psi_2$ is non-zero
(c)only $\psi_2 [A, H] \psi_2$ is zero, but $\psi_1 [A, H] \psi_1$ is non-zero
(d)both $\psi_1 [A, H] \psi_1$ and $\psi_2 [A, H] \psi_2$ are zero
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
No explanation was printed for this question.
Study loop for Quantum Chemistry