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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A uniform solid sphere of mass M and radisus a is surrounded symmetrically by a uniform thin spherical shell of equal mass and radius 2 a . Find the gravitional field at a distance (a) 3a/2 from the centre , (b) 5/2 a from the centre.

A uniform solid sphere of mass M and radisus a is surrounded symmetrically by a uniform thin spherical shell of equal mass and radius 2 a . Find the gravitional field at a distance (a) 3a/2 from the centre , (b) 5/2 a from the centre.

Find the percentage cahnge in the acceleration due to gravity when a small body is taken to an altitude R /100.