A double star is a system of two stars rotating about their centre of mass only under their mutual gravitational attraction. Let the stars have masses m and 2m and let their separation be 1. Their time period of rotation about their centre of mass will be proportional to (a)1^(3//2), (b)a , (c) m ,(d)m^(-1//2)

A double star is a system of two stars rotating about their centre of

1.	A double star is a system of two stars rotating about their centre of mass only under their mutual gravitational attraction. Let the stars have masses m and 2m and let their separation be 1. Their time period of rotation about their centre of mass will be proportional to (a)1^(3//2), (b)a , (c) m ,(d)m^(-1//2)
Answer» only a and C are TRUE only B and c are true only a and d are true All are true ANSWER :C