Question

8. If the gravitational field in a certain region of space
is zero then
(1) the potential difference between any two points
in this region is zero
(2) the potential of every point in the region is zero
(3) work required to be done by external agent to
move a mass from one point to another is
positive but by field is negative
(4) All of these​

Answer 1

Answer:

option 1 is correct.. because E = - dV / dx , now if E = 0 then dv / dx = 0 , which implies v = constant i.e potential is same everywhere and hence potential difference will be zero.