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Questions  

Four identical thin rods each of mass M and length l form a square frame. Moment of inertia of this frame about an axis through the centre of the square and perpendicular to its plane is :

a
13Ml2
b
43Ml2
c
23Ml2
d
133Ml2

detailed solution

Correct option is B

I=4Ml212+Ml22=43Ml2

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