UPSC Prelims Answer Key 2024 HISTORY OPTIONAL COURSES
Office: 011-45090051, 9818333201

INSIGHT UPSC QUIZ

Select Your Subject

GS Geography Physical Geography of World
Q.

Consider the following statements with reference to ‘Blue Stragglers’:

1. It is a class of stars on globular clusters that is smaller than the rest of the stars.

2. They are formed through the mass transfer from a close binary companion star and through collision of two stars. 

3. The Milky Way's largest and brightest globular is Omega Centauri.

Which of the statements given above is/are NOT correct?
Explanation:

ANSWER: (A)

  • Statement 1 is not correct. 

Blue stragglers, a class of stars on open or globular clusters that stand out as they are bigger and bluer than the rest of the stars, have intrigued scientists who have for long probed their origin.

  • Statement 2 is correct.

Carrying out the first-ever comprehensive analysis of blue stragglers, Indian researchers found that half of the blue stragglers in their sample are formed through mass transfer from a close binary companion star, one third are likely formed through collisions of 2 stars, and the remaining are formed through interactions of more than 2 stars.

  • Statement 3 is correct. 

The Milky Way's largest and brightest globular is Omega Centauri.

More Questions Selected Just For You. Attempt Now!

Select Your Subject