Four thin rods of same mass `m` and same length `L` form a square as shown in the figure. `M.I.` of this system about an axis through center `O` and perpendicular to its plane is

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

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

Four thin rods same mass M and same length l, from a square as shown in figure. Moment of inertia of this system about an axis passing through one corner of the square and perpendicular to its plane is

Four thin rods of same mass and same length L form a square Radius of gyration of this system about an axis which is perpendicular to plane of square and passes through its centre is

Four thin rods of same mass and same length L form a square. Radius of gyration of this system about an axis which is perpendicular to plane of square and passes through its centre is

Four thin rods of same mass and same length L form a square Radius of gyration of this system about an axis which is perpendicular to plane of square and passes through its centre is

Four identical thin rods each of mass M and length l_3 , 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---