A disc of radius 
and thickness 
has moment of inertia 
about an axis passing through its centre and perpendicular to its plane. Disc is melted and recast into a solid sphere. The moment of inertia of a sphere about its diameter is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
: Mass of disc, 
Volume 
mass of sphere
Moment of inertia of disc, 
Moment of inertia of sphere, 
or 
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