Question

Let V and E denote the gravitational potential and gravitational field at a point. It is possible to have
(a) $V=0\mathrm{and}E=0$
(b) $V=0\mathrm{and}E\ne 0$
(c) $V\ne 0\mathrm{and}E=0$
(d) $V\ne 0\mathrm{and}E\ne 0$.

Answer 1

(a) $V=0\mathrm{and}E=0$
(b) $V=0\mathrm{and}E\ne 0$
(c) $V\ne 0\mathrm{and}E=0$
(d) $V\ne 0\mathrm{and}E\ne 0$.

All the given conditions for gravitational potential and gravitational field at a point are possible.