Physics
Mechanics
Easy
Question
A double star consists of two stars having masses M and 2M . The distance between their centres is equal to r . They revolve under their mutual gravitational interaction. Then, which of the following statements are not correct?
- Heavier star revolves in orbit of radius 2r/3
- Both the stars revolve with same speed, period of which is equal to
- Kinetic energy of the heavier star is twice that of the other star
- Havier star revolves in orbit of radius r/3
The correct answers are: Heavier star revolves in orbit of radius 2r/3, Kinetic energy of the heavier star is twice that of the other star
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