A solid sphere of mass M and radius R is divided into 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 be the moment of inertia of the disc about its axis and be the moment of inertia of the new sphere about its axis. The ratio is given by :

(a)

140

(b)

185

(c)

285

(d)

65

Question ID - 51406 :-

A solid sphere of mass M and radius R is divided into 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 be the moment of inertia of the disc about its axis and be the moment of inertia of the new sphere about its axis. The ratio is given by :

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