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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
Can you answer this question?

Gravitational field $=\large\frac{-dv}{dx}$
$v$- gravitational potential.
Since $v=0$ => gravitational field must be zero
answered Aug 9, 2013 by
edited Feb 17, 2014 by meena.p