- 1(current)
Q. No.Two Stars of equal mass rotate about a common centre-of-mass in a common circular orbit of radius \(R.\) The total mass of the Stars is \(M.\)
The orbital speed of each Star is:
The orbital speed of each Star is:
| 1. | \(\sqrt{\dfrac{GM}{8R}}\) | 2. | \(\sqrt{\dfrac{GM}{16R}}\) |
| 3. | \(\sqrt{\dfrac{GM}{2R}}\) | 4. | \(\sqrt{\dfrac{GM}{4R}}\) |
Subtopic: Â Orbital velocity |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
A planet of mass \(m,\) moves in a circular orbit around the sun (mass: \(M,M\gg m\)); the angular momentum of the planet in its orbit being \(L.\) The speed of the planet in its orbit equals:
| 1. | \(\dfrac{GMm}{2L}\) | 2. | \(\dfrac{GMm}{L}\) |
| 3. | \(\dfrac{2GMm}{L}\) | 4. | \(\dfrac{4GMm}{L}\) |
Subtopic: Â Orbital velocity |
 56%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.