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Consider the following statements:
- Red dwarfs are the most common type of star in the Milky Way galaxy.
- Red dwarfs have a shorter lifespan compared to larger stars like the Sun.
- Red dwarfs are cooler and less luminous than the Sun.
How many of the above statements is/are correct?
- a)Only one
- b)Only two
- c)All three
- d)None
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Consider the following statements: Red dwarfs are the most common type...
- Statements 1 and 3 are correct.
- Context: Astronomers at the University of Liège in Belgium discovered an Earth-sized exoplanet, SPECULOOS-3 b, orbiting an ultra-cool red dwarf, 55 light-years away.
- S1: Red dwarfs are indeed the most common type of star in the Milky Way galaxy, making up the majority of stars.
- S2: Red dwarfs have much longer life spans compared to larger stars like the Sun. Their nuclear fusion processes occur at a slower rate, allowing them to burn their fuel more efficiently and last much longer, often tens to hundreds of billions of years.
- S3: Red dwarfs are cooler and less luminous than the Sun. Their surface temperatures are lower, and they emit less light, which makes them less visible from a distance compared to brighter stars like the Sun.
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Consider the following statements: Red dwarfs are the most common type of star in the Milky Way galaxy. Red dwarfs have a shorter lifespan compared to larger stars like the Sun. Red dwarfs are cooler and less luminous than the Sun.How many of the above statements is/are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?
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Consider the following statements: Red dwarfs are the most common type of star in the Milky Way galaxy. Red dwarfs have a shorter lifespan compared to larger stars like the Sun. Red dwarfs are cooler and less luminous than the Sun.How many of the above statements is/are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements: Red dwarfs are the most common type of star in the Milky Way galaxy. Red dwarfs have a shorter lifespan compared to larger stars like the Sun. Red dwarfs are cooler and less luminous than the Sun.How many of the above statements is/are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements: Red dwarfs are the most common type of star in the Milky Way galaxy. Red dwarfs have a shorter lifespan compared to larger stars like the Sun. Red dwarfs are cooler and less luminous than the Sun.How many of the above statements is/are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?.
Consider the following statements: Red dwarfs are the most common type of star in the Milky Way galaxy. Red dwarfs have a shorter lifespan compared to larger stars like the Sun. Red dwarfs are cooler and less luminous than the Sun.How many of the above statements is/are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements: Red dwarfs are the most common type of star in the Milky Way galaxy. Red dwarfs have a shorter lifespan compared to larger stars like the Sun. Red dwarfs are cooler and less luminous than the Sun.How many of the above statements is/are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements: Red dwarfs are the most common type of star in the Milky Way galaxy. Red dwarfs have a shorter lifespan compared to larger stars like the Sun. Red dwarfs are cooler and less luminous than the Sun.How many of the above statements is/are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?.
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