Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Gravitation Earth satellite
Two stars of masses m and 2m at a distance d rotate about their common centre of mass in free space. The period of revolution is:
1
\(\frac{1}{{2\pi }}\sqrt {\frac{{3Gm}}{{{d^3}}}} \)
2
\(2\pi \sqrt {\frac{{{d^3}}}{{3Gm}}} \)
3
\(2\pi \sqrt {\frac{{3Gm}}{{{d^3}}}} \)
4
More than one of the above
5
None of the above