A particle of mass M is situated at the centre of a spherical shell of – McqOptions

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1.	A particle of mass M is situated at the centre of a spherical shell of same mass and radius a. The gravitational potential at a point situated at \[\frac{a}{2}\] distance from the centre, will be:
A.	\[-\frac{3GM}{a}\]
B.	\[-\frac{2GM}{a}\]
C.	\[-\frac{GM}{a}\]
D.	\[-\frac{4GM}{a}\]
Answer» B. \[-\frac{2GM}{a}\]

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