Two small artificial satellite are revol...

Two small artificial satellite are revolving around the earth in two circular orbits of radii r and `(r+Deltar)`. If their time periods of revolution are T and `T+Delta T`, then `(Deltar lt lt r, DeltaT lt lt T)`

`DeltaT=3/2T(Deltar)/r`

`DeltaT=-3/2T(Deltar)/r`

`DeltaT=2/3T(Deltar)/r`

`DeltaT=T*(Deltar)/r`

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