JEE PYQ: Rotational Motion Question 40
Question 40 - 2020 (09 Jan Shift 1)
Three solid spheres each of mass $m$ and diameter $d$ are stuck together such that the lines connecting the centres form an equilateral triangle of side of length $d$. The ratio $\frac{I_O}{I_A}$ of moment of inertia $I_O$ of the system about an axis passing the centroid and about center of any of the spheres $I_A$ and perpendicular to the plane of the triangle is:
(1) $\frac{13}{23}$
(2) $\frac{15}{13}$
(3) $\frac{23}{13}$
(4) $\frac{13}{15}$