Question

What do you mean by Gravitational intensity?

Answer 1

as answered previously...

The intensity of gravitational field of a body at a point in the field is defined as the force experienced by a body of unit mass placed at that point provided the presence of unit mass does not disturb the original gravitational field. It is always directed towards the centre of the gravity of the body whose gravitational field is considered. Gravitational intensity is a vector quantity denoted as I.

I=GM/x2

Where G is the universal gravitational constant and M is the mass of the body. x is the distance of the point where the test mass is kept from the centre of the body whose gravitational field is considered.