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Gravitation question

2021 · 24 Feb · Shift 1 · Q60
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  5. /2021 · 24 Feb · Shift 1 · Q60

Gravitation question

2021 · 24 Feb · Shift 1 · Q60

JEE MainPhysicsGravitationMCQ+4 / −1
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. A
    12πd33Gm{1 \over {2\pi }}\sqrt {{{{d^3}} \over {3Gm}}}2π1​3Gmd3​​
  2. B
    2π3Gmd32\pi \sqrt {{{3Gm} \over {{d^3}}}}2πd33Gm​​
  3. C
    12π3Gmd3{1 \over {2\pi }}\sqrt {{{3Gm} \over {{d^3}}}}2π1​d33Gm​​
  4. D
    2πd33Gm2\pi \sqrt {{{{d^3}} \over {3Gm}}}2π3Gmd3​​
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