1.

In a double star system, two stars of masses m_(1)and m_2 seperated by a distance d rotate about their centre of mass. Then their common angular velocity would be:

Answer»

`sqrt((Gm_(1))/d^(3))`
`sqrt((Gm_(2))/d^(3))`
`sqrt((G(m_(1)+ m_(2)))/d^(3))`
`sqrt(d^(3)/(G(m_(1) + m_(2))))`

Answer :C


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