Question

what is a measure of gravitational of attraction on a body

Answer 1

Any stationary body having mass has an equivalent amount of energy, and all forms of energy resist acceleration by a force and have gravitational attraction. Passive gravitational mass measuresthe gravitational force exerted on an object in a known gravitational field.

Answer 2

The gravitational force depends on the body mass and the actual force . As by newton's third law of motion . Every force has a equal and opposite reaction. Thus the g€mass and refractive index .