Two satellite are revolving around the earth with velocities

Two satellite are revolving around the earth with velocities  v₁ and  v₂ and in radii r₁ and  r₂ (r_{1 >} r₂)  respectively Then

(a)  v₁ = v₂                            (b) v_{1 >} v₂

(c)   v_{1 <} v₂                              (d) v_1/r₁ =v₂/r₂

Answer: c

(19)