NEET 2011 Physics question
A particle of mass is situated at the centre of spherical shell of mass and radius . The magnitude of the gravitational potential at a point situated at distance from the centre, will be :
Answer: (2)
Solution
The potential at the point (at distance from the centre, i.e. inside the shell) is the sum of the potential due to the shell and that due to the particle at the centre. Inside a uniform spherical shell the potential is constant and equal to
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