Define radius of gyration.

If the moment of inertia of a solid sphere of mass M and radius R is (2)/(5) MR^(2) , what will be the radius of gyration?.

Find (i) the moment of inertia of a rod of mass 100 g and length 100 cm about and axis passing through its centre and perpendicular to its length and (ii) the radius of gyration.

What is the radius of gyration of a solid sphere with respect to its diameter?

Calculate the radius of gyration of a uniform thin rod of mass M and length L about an axis of rotation perpendicular to its length and passing through its centre.

Two spheres have equal masses and their external radii are the same. One of them is solid and the other hollow. Which one will have a greater radius of gyration?

Define radius of curvature

Define radius ratio. What is the value of radius ratio for octahedral geometry ?