For the same total mass, which of the following will have the largest moment of inertia about an...

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For the same total mass, which of the following will have the largest moment of inertia about an
\( \mathrm{P} \) axis passing through the centre of mass and perpendicular to the plane of the body
(a) a disc of radius \( R \)
(b) a ring of radius \( R \)
W
(c) a square lamina of side \( 2 R \)
(d) four rods forming a square of side \( 2 R \)
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