PhysicsMedium159×since 2002Q7228Two bodies of masses mmm and 444 mmm are placed at a distance r.r.r. The gravitational potential at a point on the line joining them where the gravitational field is zero is:A−4Gmr- {{4Gm} \over r}−r4GmB−6Gmr- {{6Gm} \over r}−r6GmC−9Gmr- {{9Gm} \over r}−r9GmDzeroCheck answerSkip