A uniform hollow shere has internal radiusa and external radius b. Take the potential at infinity to be zero. Density ofhte materialof the sphere is rho The gravitational potential at a point on the outer surface is

A uniform hollow shere has internal radiusa and external radius b. Tak

1.	A uniform hollow shere has internal radiusa and external radius b. Take the potential at infinity to be zero. Density ofhte materialof the sphere is rho The gravitational potential at a point on the outer surface is
Answer» `(-4)/(3)piGrhob^(2)` `(-4)/(3)(Gpirho(B^(3)-a^(3)))/(b^(2))` `(-4)/(3)(Gpirho(b^(3)-a^(3)))/(b)` `(-4)/(3)Gpirho(a^(3))/(b)` Answer :C