A chain of length 1 and mass m lies on the surface of a smooth sphere of radius Rgt1 with one end tied to the top of the space. Find the gravitational energy of the chain with reference level at the centre of the sphere

A chain of length 1 and mass m lies on the surface of a smooth sphere

1.	A chain of length 1 and mass m lies on the surface of a smooth sphere of radius Rgt1 with one end tied to the top of the space. Find the gravitational energy of the chain with reference level at the centre of the sphere
Answer» `(MR^(2)g)/LSIN(l/R)` `(mR^(2)g)/lcos(l/R)` `(mgl)/RSIN(l/R)` `(mgl)/(R^(2))cos(l/R)` ANSWER :A