In a certain region of space, the gravitational field is given by `-(k)/(r)` where `r` is the distance and k is a constant. If the gravitaional potential at `r=r_(0)` be `V_(0)`, then what is the expression for the gravitaional potential (V)-

Options

A. `k "In" (r//r_(0))`
B. `k "In" (r_(0)//r)`
C. `V_(0)k"in"(r//r_(0))`
D. `V_(0)+k"In"(r_(0)//r)`

Answer

C

Explanation

Here `I=-(dV)/(dr)=k//r` (or) `dV=k(dr)/r` then integrate