Dependence of intensity of gravitational field `(E)` of earth with distance `(r)` from centre of earth is correctly represented by

The intensity of the gravitational field of the earth is maximum at

The value of intensity of gravitational field at infinite distance from the body is

The diagram showing the variation of gravitational potential of earth with distance from the centre of earth is

The diagram showing the variation of gravitational potential of earth with distance from the centre of earth is

A cylinderical conductor of radius R is carrying constant current. The plot of the magnitude of the magnetic field, B with the distance, d from the centre of the conductor , is correctly represented by the figure:

Which one of the following graphs represents correctly represent the variation of the gravitational field (E) with the distance (r) from the centre of a spherical shell of mass M radius R ?

Find the intensity of gravitational field at a point lying at a distance x from the centre on the axis of a ring of radius a and mass M .