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Question: Answered & Verified by Expert
In our galaxy, which consists of 2.5 × 10^11 stars, each with a mass of one solar mass, how long will it take for a star located 50,000 light-years away from the galactic center to complete one revolution? Given that the diameter of the Milky Way is 10^5 light-years.
ChemistryGravitationNEET
Options:
  • A $3.9~\times ~{{10}^{8}}$years
  • B $3.55~\times ~{{10}^{8}}$ years
  • C $3.9~\times ~{{10}^{9}}$years
  • D $3.55~\times ~{{10}^{9}}$years
Solution:
1354 Upvotes Verified Answer
The correct answer is: $3.55~\times ~{{10}^{8}}$ years
Correct Option is : (B)
$3.55~\times ~{{10}^{8}}$ years

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