A satellite is revolving round the earth in an orbit of radius r with time period T. If the satellite is revolving round the earth in an orbit of radius `r + Deltar(Deltar lt lt r)` with time period `T + DeltaT(DeltaT lt lt T)` then.

Options

A. `(Delta T)/(T) = 3/2 (Delta r)/(r)`
B. `(Delta T)/T = 2/3 (Delta r)/(r)`
C. `(Delta T)/T = (Delta r)/(r)`
D. `(Delta T)/T = -(Delta r)/(r)`

Answer

A