In the graph shown, the `PE` of earth-satellite system is shown by a solid line as a function of distance `r` (the separation between earth's centre and satellite). The total energy of the two objects which may or may not be bounded to the earth are shown in the figure by dotted lines.

Based on the above information, answer the following questions. If both the objects have the same `PE` curve as shown in the figure, then

Options

A. for objects having total energy `E_(2)`, all values of `r` are possible
B. for the object having total energy `E_(2)`values of `r lt r_(0)` are only possible
C. for the object having total energy `E_(1)`, all values of `r` are possible
D. none of the above

Answer

A

Explanation

The object having total energy `E_(2)` is not bounded as its total energy is positive and it is never an intersecting `PE` curve, so all the values of `r` are possible for it.