
Four thin rods of same mass M and same length l, form a square as shown in figure. Moment of inertia of this system about an axis through centre O and perpendicular to its plane is
(a) 4/3 Ml2
(b) Ml2/3
(c) Ml2/6
(d) 2/3 Ml2
Ans. a

Four thin rods of same mass M and same length l, form a square as shown in figure. Moment of inertia of this system about an axis through centre O and perpendicular to its plane is
(a) 4/3 Ml2
(b) Ml2/3
(c) Ml2/6
(d) 2/3 Ml2
Ans. a
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