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With reference to the Dark energy, consider the following statements:
1. Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.
2. While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.
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 'C'. Can you explain this answer?
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Verified Answer
With reference to the Dark energy, consider the following statements:1...
An international team of researchers made the first putative direct detection of dark energy.
- Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.
- Dark energy has been noted as “the most profound mystery in all of science”.
Dark energy Vs Dark matter
- Everything we see – the planets, moons, massive galaxies, you, me, this website – makes up less than 5% of the universe.
- About 27% is dark matter and 68% is dark energy.
- While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.
- Despite both components being invisible, we know a lot more about dark matter, since its existence was suggested as early as the 1920s, while dark energy wasn’t discovered until 1998
Recent detection
- They noticed certain unexpected results in an underground experiment and write that dark energy may be responsible for it.
- The XENON1T experiment is the world’s most sensitive dark matter experiment and was operated deep underground at the INFN Laboratori Nazionali del Gran Sasso in Italy.
- The finding also suggests that experiments like XENON1T, which are designed to detect dark matter, could also be used to detect dark energy.
- Hence both statements are correct.
Most Upvoted Answer
With reference to the Dark energy, consider the following statements:1...
An international team of researchers made the first putative direct detection of dark energy.
- Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.
- Dark energy has been noted as “the most profound mystery in all of science”.
Dark energy Vs Dark matter
- Everything we see – the planets, moons, massive galaxies, you, me, this website – makes up less than 5% of the universe.
- About 27% is dark matter and 68% is dark energy.
- While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.
- Despite both components being invisible, we know a lot more about dark matter, since its existence was suggested as early as the 1920s, while dark energy wasn’t discovered until 1998
Recent detection
- They noticed certain unexpected results in an underground experiment and write that dark energy may be responsible for it.
- The XENON1T experiment is the world’s most sensitive dark matter experiment and was operated deep underground at the INFN Laboratori Nazionali del Gran Sasso in Italy.
- The finding also suggests that experiments like XENON1T, which are designed to detect dark matter, could also be used to detect dark energy.
- Hence both statements are correct.
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Community Answer
With reference to the Dark energy, consider the following statements:1...
Explanation:
Statement 1: Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.
This statement is correct. Dark energy is a term used to describe the unknown form of energy that is believed to exist in the universe. It is called "dark" because it does not interact with light or other forms of electromagnetic radiation, making it difficult to detect and study directly. Dark energy is estimated to make up about 68% of the total energy content of the universe, according to current scientific measurements. Its existence was first suggested in the late 1990s based on observations of distant supernovae.
Statement 2: While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.
This statement is also correct. Dark matter and dark energy are two separate and distinct components of the universe. Dark matter is a hypothetical form of matter that does not interact with light or other electromagnetic radiation, but can be detected through its gravitational effects on visible matter. It is believed to make up about 27% of the total energy content of the universe. Dark matter is responsible for the gravitational effects that hold galaxies together and influence the large-scale structure of the universe.
On the other hand, dark energy is responsible for the accelerating expansion of the universe. It is believed to exert a repulsive force on matter and energy, causing the universe to expand at an accelerating rate. This discovery was made in the late 1990s through observations of distant supernovae, which showed that the expansion of the universe is not slowing down as expected, but rather speeding up. Dark energy is thought to be a property of space itself, filling empty space with a constant energy density.
Conclusion:
Both statements 1 and 2 are correct. Dark energy is a mysterious form of energy that makes up about 68% of the universe and has intrigued physicists and astronomers for decades. It is responsible for the accelerating expansion of the universe, while dark matter attracts and holds galaxies together.
Statement 1: Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.
This statement is correct. Dark energy is a term used to describe the unknown form of energy that is believed to exist in the universe. It is called "dark" because it does not interact with light or other forms of electromagnetic radiation, making it difficult to detect and study directly. Dark energy is estimated to make up about 68% of the total energy content of the universe, according to current scientific measurements. Its existence was first suggested in the late 1990s based on observations of distant supernovae.
Statement 2: While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.
This statement is also correct. Dark matter and dark energy are two separate and distinct components of the universe. Dark matter is a hypothetical form of matter that does not interact with light or other electromagnetic radiation, but can be detected through its gravitational effects on visible matter. It is believed to make up about 27% of the total energy content of the universe. Dark matter is responsible for the gravitational effects that hold galaxies together and influence the large-scale structure of the universe.
On the other hand, dark energy is responsible for the accelerating expansion of the universe. It is believed to exert a repulsive force on matter and energy, causing the universe to expand at an accelerating rate. This discovery was made in the late 1990s through observations of distant supernovae, which showed that the expansion of the universe is not slowing down as expected, but rather speeding up. Dark energy is thought to be a property of space itself, filling empty space with a constant energy density.
Conclusion:
Both statements 1 and 2 are correct. Dark energy is a mysterious form of energy that makes up about 68% of the universe and has intrigued physicists and astronomers for decades. It is responsible for the accelerating expansion of the universe, while dark matter attracts and holds galaxies together.
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With reference to the Dark energy, consider the following statements:1. Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.2. While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.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 'C'. Can you explain this answer?
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With reference to the Dark energy, consider the following statements:1. Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.2. While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.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 'C'. Can you explain this answer? for Current Affairs 2024 is part of Current Affairs preparation. The Question and answers have been prepared according to the Current Affairs exam syllabus. Information about With reference to the Dark energy, consider the following statements:1. Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.2. While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.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 'C'. Can you explain this answer? covers all topics & solutions for Current Affairs 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to the Dark energy, consider the following statements:1. Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.2. While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.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 'C'. Can you explain this answer?.
With reference to the Dark energy, consider the following statements:1. Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.2. While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.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 'C'. Can you explain this answer? for Current Affairs 2024 is part of Current Affairs preparation. The Question and answers have been prepared according to the Current Affairs exam syllabus. Information about With reference to the Dark energy, consider the following statements:1. Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.2. While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.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 'C'. Can you explain this answer? covers all topics & solutions for Current Affairs 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to the Dark energy, consider the following statements:1. Dark energy, the mysterious form of energy that makes up about 68% of the universe, has intrigued physicists and astronomers for decades.2. While dark matter attracts and holds galaxies together, dark energy repels and causes the expansion of our universe.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 'C'. Can you explain this answer?.
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