A solid sphere of mass M and radius R has a moment of inertia about an axis tangent to its surface is given by formula …………..

A solid sphere of mass M and radius R has a moment of inertia about an

1.	A solid sphere of mass M and radius R has a moment of inertia about an axis tangent to its surface is given by formula …………..
Answer» `(2)/(5)MR^(2)` `(7)/(5)MR^(2)` `(2)/(3)MR^(2)` `(5)/(3)MR^(2)` Solution :Moment of inertia of SOLID sphere about an axis passing through its centre `I_(c )=(2)/(5)MR^(2)` From parallel axis theorem, moment of inertia about axis TANGENTIAL to surface, `I=I_(c)+Md^(2)` `=(2)/(5)MR^(2)+MR^(2) [because d=R]` `therefore I=(7)/(5)MR^(2)`