Select the correct choice(s) :

Options

A. The gravitational field inside a spherical cavity, within a spherical planet must be non zero and uniform.
B. When a body is projected horizontally at an appreciable large height above the earth, with a velocity less than for a circular orbit, it will fall to the earth along a parabolic path
C. A body of zero total mechanical energy placed in a gravitational field will escape the field
D. Earth’s satellite must be in equatorial plane.

Answer

C