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Physics · PYQ NEET UG 2026
हिन्दीA thin horizontal disc is rotating about a vertical axis passing through its fixed centre $O$. Its angular momentum is $L_A$ and $L_B$ computed about points $A$ and $B$, respectively, with $OB = 2 \times OA$. The value of $\frac{L_A}{L_B}$ is :
Correct answer · Option 3
$1$
Explanation
The angular momentum of a rotating rigid body about any point in its plane of rotation is independent of the reference point chosen if the net external force is zero, hence $L_A = L_B$, so $\frac{L_A}{L_B} = 1$.
