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A spherical symmetric gravitational syst...

A spherical symmetric gravitational system of a particle has a mass density `rho={{:(rho_0, "for", r le R),(0,"for", r gt R) :}` , where `rho_0` is a constant. A test mass can undergo circular motion under the influence of the gravitational field of particles. It speed V as a function of distance `r(0 lt r lt prop)` from the centre of the system is represented by :

A

B

C

D

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The correct Answer is:
C
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