KCET 2020 Physics Solved Paper

A thin uniform rectangular plate of mass 2kg is placed in x−y plane as shown in figure. The moment of inertia about x -axis is Ix=0.2kgm2 and the moment of inertia about y -axis is Iy=0.3kgm2. The radius of gyration of the plate about the axis passing through 0 and perpendicular to the plane of the plate is