Two small satellites move in circular orbits around the earth, at distances r and r + Ar from the centre of the earth. Their time periods of rotation are T and T + DeltaT. (Deltar lt lt r.DeltaT lt lt T)

Two small satellites move in circular orbits around the earth, at dist

1.	Two small satellites move in circular orbits around the earth, at distances r and r + Ar from the centre of the earth. Their time periods of rotation are T and T + DeltaT. (Deltar lt lt r.DeltaT lt lt T)
Answer» `DELTAT =3/2 T (DELTAR)/R` `DeltaT=-3/2T(DeltaT)/r` `DeltaT =2/3T(Deltar)/r` `DeltaT=T(Deltar)/r` ANSWER :A