ABC26PH1281 · Quantum Chemistry

Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Postulates Operators · Exam: NET JUNE 2016 · 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 $\psi_{1}[\mathrm{A}, \mathrm{H}] \psi_{1}$ and $\psi_{2}[\mathrm{A}, \mathrm{H}] \psi_{2}$ are non-zero
(b)only $\psi_{1}[\mathrm{A}, \mathrm{H}] \psi_{1}$ is zero , but $\psi_{2}[\mathrm{A}, \mathrm{H}] \psi_{2}$ is non-zero
(c)only $\psi_{2}[\mathrm{A}, \mathrm{H}] \psi_{2}$ is zero , but $\psi_{1}[\mathrm{A}, \mathrm{H}] \psi_{1}$ is non-zero
(d)both $\psi_{1}[\mathrm{A}, \mathrm{H}] \psi_{1}$ and $\psi_{2}[\mathrm{A}, \mathrm{H}] \psi_{2}$ 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.

Open in whiteboard · Browse this chapter in the app