Starting from the centre of the earth having radius R , the variation of g (acceleration due to gravity) is shown by

Step-by-step solution

The acceleration due to gravity g at a distance r from the centre of the Earth is given by two different expressions depending on whether the point is inside or outside the Earth. For r For r R (outside the Earth), the acceleration due to gravity is given by g_ out = GM r^2 . This shows that g is inversely proportional to the square of the distance, i.e., g 1 r^2 . The graph is a curve that decreases as r increases. At the surface of the Earth ( r = R ), both expressions yield the same value g = GM R^2 , which is t