A satellite of mass m orbits around earth in an elliptic trajectory of semi-major axis a. At a radial distance r = r0, measured from the centre of the earth, the kinetic energy is equal to half the magnitude of the total energy. If M denotes the mass of the earth and the total energy is \( - \frac{{{\rm{GMm}}}}{{{\rm{2a}}}}\), the value of r0 / a is nearest to
1
1.33
2
1.48
3
1.25
4
1.67
5
Question Not Attempted