One solid sphere A and another hollow sphere B are of same mass and same outer radii. Their moment of…
One solid sphere A and another hollow sphere B are of same mass and same outer radii. Their moment of inertia about their diameters are respectively $\mathrm{I}_{\mathrm{A}}$ and $\mathrm{I}_{\mathrm{B}}$ such that
$I_A=I_B$
$I_A>I_B$
$I_A < I_B$
yes, $45^{\circ}$
$I_A / I_B=d_A / d_B$
Where $d_A$ and $d_B$ are their densities.
Solution
Moment of inertia of a uniform density solid sphere, $A=\frac{2}{5} M R^2$
Since $M$ and $R$ are same, $I_A < I_B$.