Two identical stars of mass M orbit around their centre of mass. Each orbit is circular and has radius R, so that the two stars are always on opposite sides of the circle. The orbital speed of the each star in the orbit is

Two identical stars of mass M orbit around their centre of mass. Each

1.	Two identical stars of mass M orbit around their centre of mass. Each orbit is circular and has radius R, so that the two stars are always on opposite sides of the circle. The orbital speed of the each star in the orbit is
Answer» `SQRT((2GM)/(R ))` `sqrt((GM)/(2R))` `sqrt((GM)/(4R))` `sqrt((GM)/(R ))` ANSWER :C