Four identical thin rods each of mass 
and length 
, 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
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
: Moment of inertia for the rod 
rotating about an axis through the midpoint of AB perpendicular to the plane of the paper is 
∴ ∴ Moment of inertia about the axis through the centre of the square and parallel to this axis,
For all the four rods, 
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