Question Bank MCQ • 1 Mark Section 4: Quantum Mechanics Angular momentum

QB_PH_109: Angular momentum

Question Statement

Under spatial parity ($\mathbf{r} \to -\mathbf{r}$), the spherical harmonic $Y_l^m(\theta, \phi)$ transforms as:
(A) (-1)^l Y_l^m
(B) (-1)^m Y_l^m
(C) Y_l^m
(D) -Y_l^m
Correct Answer
A
Verified Key

Step-by-Step KaTeX Derivation & Detailed Explanation

### Solution: Parity of $Y_l^m$ is $(-1)^l$.
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