Consider a binary star system of star A and star B with masses mA and mB revolving in a circular orbit of radii rA and rB, respectively. If TA and TB are the time period of star A and star B, respectively, then :
(1) \(\cfrac{T_A}{T_B}=\left(\cfrac{r_A}{r_B}\right)^{\cfrac32}\)
(2) TA = TB
(3) TA > TB (if mA > mB)
(4) TA > TB (if rA > rB)
