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# In the gravitational field , at a point where the gravitational potential is zero

a) gravitational field is necessarily zero b) The gravitational field may not be zero c) nothing can be said of it d) gravitational field is always positive

Gravitational field $=\large\frac{-dv}{dx}$
$v$- gravitational potential.
Since $v=0$ => gravitational field must be zero
edited Feb 17, 2014 by meena.p