Because of the effect of the air drag abandoned satellites, at the end of their usual lives lose energy in the upper layers of atmosphere, before finally burning up when they reach the denser lower layers. It can be shown that the satellite originally moving along circular trajectories will continue to travel in approximately circular orbits, with their orbital radii slowly decreasing. Drag force acting on satellite can be expressed as  $F_{drag}=C\rho v^2$ where  $\rho$  is  density  of air at the altitude  of satellite , v is speed and C is constant. Mark the incorrect statement: -