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In a certain region of space gravitational field is given by
\( P \) \( g=-\left(\frac{k}{r}\right) \). Taking the reference point to be at \( r=r_{0} \) with
W potential \( V=V_{0} \), the potential \( (V) \) at a general point \( r \) is given. by :
(A) \( V=K \ln \left(\frac{r}{r_{0}}\right)+v_{0} \)
(B) \( V=K \ln \left(\frac{r}{r_{0}}\right)-v_{0} \)
(C) \( V=K \ln \left(\frac{r_{0}}{r}\right)+v_{0} \)
(D) \( V=K \ln \left(\frac{r_{0}}{r}\right)-v_{0} \)
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