NEET2009PhysicsRotational MotionActual
Four identical thin rods each of mass M and length l , from a square frame. Moment of inertia of this frame about an axis through the centre of the square and perpendicular to its plane is :
Options
- A1 3 M l^2
- B4 3 M l^2
- C2 3 M l^2
- D13 3 M l^2
Correct answer
B. 4 3 M l^2
Step-by-step solution
I=4 [ M ^2 12 +M ( 2 )^2 ] the parallel axis theorem = 4 3 M ^2