Q.39 consider a classical particle subjected to an attractive inverse-square force field. the total energy of the particle is e and the eccentricity is e. the p

Q.39 Consider a classical particle subjected to an attractive inverse-square force field. The total energy of the particle is E and the eccentricity is E. The particle will follow a parabolic orbit if (A) E>0 and e = 1 (C) E = 0 and e = 1 (B) E <0 and e < 1 (D) E S0 and e =1