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[" 6.A solid sphere of mass "M," radius ...

[" 6.A solid sphere of mass "M," radius "R" and having moment of "],[" inertia about an axis passing through the center of mass "],[" as "I" is recast into a disc of thickness "t" whose moment "],[" of inertia about an axis passing through its edge and "],[" perpendicular to its plane remains "I" .Then,the radius of "],[" the disc will be "],[[" (1) "(2R)/(sqrt(15))," (2) "R sqrt((2)/(15))],[" (3) "(4R)/(sqrt(15))," (4) "(R)/(4)]]

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