Question: A solid sphere of mass M and radius R is divided into two unequal parts. The first part has a mass of and is

A solid sphere of mass M and radius R is divided into

A solid sphere of mass M and radius R is divided into two unequal parts. The first part has a mass of and is converted into a uniform disc of radius 2R. The second part is converted into a uniform solid sphere. Let I be the moment of inertia of the disc about its axis and Iz be the moment of inertia of the new sphere about its axis. The ratio of is given by (A) 185 (B) 65 (C) 285 (D) 140

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