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Consider the following statements regarding Dark matter:
- It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies.
- More than 60% of the Universe is made up of dark matter.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements regarding Dark matter: It is a hypot...
**Statement 1:**
Dark matter is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies.
This statement is correct. Dark matter is a theoretical form of matter that does not interact with light or other forms of electromagnetic radiation, making it invisible. It is believed to make up a significant portion of the total mass in the universe. One of the primary reasons for the existence of dark matter is to explain the observed gravitational effects that cannot be accounted for by visible matter alone. Dark matter is thought to contribute to the gravitational forces that hold galaxies together, as well as the large-scale structure of the universe.
**Statement 2:**
More than 60% of the Universe is made up of dark matter.
This statement is incorrect. The exact percentage of dark matter in the universe is still uncertain and a subject of ongoing research. Estimates suggest that dark matter accounts for approximately 27% of the total mass-energy content of the universe. This means that dark matter is a significant component, but it does not make up more than 60% of the universe.
Therefore, only statement 1 is correct, and the correct answer is option 'A' - 1 only. Dark matter is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies.
Dark matter is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies.
This statement is correct. Dark matter is a theoretical form of matter that does not interact with light or other forms of electromagnetic radiation, making it invisible. It is believed to make up a significant portion of the total mass in the universe. One of the primary reasons for the existence of dark matter is to explain the observed gravitational effects that cannot be accounted for by visible matter alone. Dark matter is thought to contribute to the gravitational forces that hold galaxies together, as well as the large-scale structure of the universe.
**Statement 2:**
More than 60% of the Universe is made up of dark matter.
This statement is incorrect. The exact percentage of dark matter in the universe is still uncertain and a subject of ongoing research. Estimates suggest that dark matter accounts for approximately 27% of the total mass-energy content of the universe. This means that dark matter is a significant component, but it does not make up more than 60% of the universe.
Therefore, only statement 1 is correct, and the correct answer is option 'A' - 1 only. Dark matter is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies.
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Consider the following statements regarding Dark matter: It is a hypot...
Astronomers have recently made the most detailed map ever of mysterious dark matter using the universe’s very first light
About Dark Matter:
- What is it? Dark matter is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies.
- How much is dark matter?
- According to NASA, Dark matter seems to outweigh visible matter roughly six to one, making up about 27% of the universe.
- Roughly 68% of the universe is dark energy. Dark matter makes up about 27%. The rest visible matter is 5% of the universe.
- Why called dark matter? It is called so because unlike normal matter (i.e. stars and galaxies), dark matter does not interact with the electromagnetic force.
- Detection: As it does not interact with the electromagnetic force, thus it does not absorb, reflect or emit light or electromagnetic radiation of any kind. And this makes it extremely hard to spot/detect. It can be detected only through its gravitational effects.
- Importance: Its gravitational force prevents stars in our Milky Way from flying apart.
Hence only statement 1 is correct.
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Consider the following statements regarding Dark matter: It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. More than 60% of the Universe is made up of dark matter.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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Consider the following statements regarding Dark matter: It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. More than 60% of the Universe is made up of dark matter.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. 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 regarding Dark matter: It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. More than 60% of the Universe is made up of dark matter.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. 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 regarding Dark matter: It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. More than 60% of the Universe is made up of dark matter.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?.
Consider the following statements regarding Dark matter: It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. More than 60% of the Universe is made up of dark matter.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. 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 regarding Dark matter: It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. More than 60% of the Universe is made up of dark matter.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. 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 regarding Dark matter: It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. More than 60% of the Universe is made up of dark matter.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?.
Solutions for Consider the following statements regarding Dark matter: It is a hypothetical invisible mass thought to be responsible for adding gravity to galaxies and other bodies. More than 60% of the Universe is made up of dark matter.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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