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The mass density of a spherical body is ...

The mass density of a spherical body is given by `rho(r)=k/r` for `r le R` and `rho (r)=0`for r > R , where r is the distance from the centre. The correct graph that describes qualitatively the acceleration, a, of a test particle as a function of r is :

A

B

C

D

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A
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