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Question

Question: The highest moment of inertia if all the objects have same mass and same radius is of –...

The highest moment of inertia if all the objects have same mass and same radius is of –

A

A ring about its axis perpendicular to the plane of the ring

B

A solid sphere about one of its diameters

C

A spherical shell about one of its diameters

D

A disc about its axis perpendicular to the plane of the disc

Answer

A ring about its axis perpendicular to the plane of the ring

Explanation

Solution

Iring = mr2

Isolid sphere = 25\frac{2}{5} mr2

Ispherical shell = 23\frac{2}{3}mr2

and Idisc = mr22\frac{mr^{2}}{2}