Current Affairs Exam > Current Affairs Questions > Consider the following statements regarding Q...
Start Learning for Free
Consider the following statements regarding Quasars.
1. Quasars are very luminous objects in faraway galaxies.
2. They are not found in galaxies that have supermassive blackholes.
Which of the above statements 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?
Verified Answer
Consider the following statements regarding Quasars.1. Quasars are ver...
An international team of astronomers have discovered the most distant ‘radio-loud’ quasar with the help of European Southern Observatory’s Very Large Telescope (ESO’s VLT). It took 13 billion years for the quasar’s light to reach earth, according to a paper published in The Astrophysical Journal March 8, 2021.
Quasars are very luminous objects in faraway galaxies that emit jets at radio frequencies. They are only found in galaxies that have supermassive blackholes which power these bright discs. However, 90 per cent of them do not emit strong radio waves, making this newly-discovered one special.
Most active galaxies have a supermassive black hole at the centre which sucks in surrounding objects. Quasars are formed by the energy emitted by materials spiralling around a blackhole right before being sucked into it.
Most Upvoted Answer
Consider the following statements regarding Quasars.1. Quasars are ver...
An international team of astronomers have discovered the most distant ‘radio-loud’ quasar with the help of European Southern Observatory’s Very Large Telescope (ESO’s VLT). It took 13 billion years for the quasar’s light to reach earth, according to a paper published in The Astrophysical Journal March 8, 2021.
Quasars are very luminous objects in faraway galaxies that emit jets at radio frequencies. They are only found in galaxies that have supermassive blackholes which power these bright discs. However, 90 per cent of them do not emit strong radio waves, making this newly-discovered one special.
Most active galaxies have a supermassive black hole at the centre which sucks in surrounding objects. Quasars are formed by the energy emitted by materials spiralling around a blackhole right before being sucked into it.
Free Test
FREE
| Start Free Test |
Community Answer
Consider the following statements regarding Quasars.1. Quasars are ver...
Quasars, short for quasi-stellar radio sources, are extremely luminous objects located in distant galaxies. They emit vast amounts of energy, making them one of the most powerful and brightest astronomical phenomena in the universe. Let's analyze the given statements regarding quasars to determine their accuracy.
Statement 1: Quasars are very luminous objects in faraway galaxies.
This statement is correct. Quasars are known for their high luminosity, outshining entire galaxies. They emit massive amounts of energy across various wavelengths, including radio waves, visible light, ultraviolet light, and X-rays. The luminosity of quasars is attributed to the accretion of mass onto supermassive black holes at the centers of galaxies. As matter falls into the black hole, it releases an enormous amount of energy in the form of light.
Statement 2: They are not found in galaxies that have supermassive black holes.
This statement is incorrect. In reality, quasars are directly associated with galaxies that host supermassive black holes. It is believed that the intense radiation emitted by quasars originates from the accretion disk surrounding these black holes. As matter spirals into the black hole, it forms a disk of hot, glowing gas and dust. The energy released during this process produces the luminosity observed in quasars.
Explanation:
The given statements can be summarized as follows:
1. Quasars are very luminous objects in faraway galaxies. (Correct)
2. They are not found in galaxies that have supermassive black holes. (Incorrect)
The first statement correctly describes quasars as exceptionally bright objects located in distant galaxies. These objects emit enormous amounts of energy, making them visible across vast cosmic distances.
However, the second statement is incorrect. Quasars are, in fact, associated with galaxies that possess supermassive black holes. The immense gravitational pull of these black holes enables the accretion of surrounding matter, leading to the formation of accretion disks and the release of tremendous energy observed in quasars.
Conclusion:
In conclusion, quasars are indeed highly luminous objects found in distant galaxies. They are intimately connected to galaxies hosting supermassive black holes, with the black hole's accretion disk being the source of the quasar's intense radiation. Therefore, only statement 1 is correct, and the correct answer is option 'A' - 1 only.
Statement 1: Quasars are very luminous objects in faraway galaxies.
This statement is correct. Quasars are known for their high luminosity, outshining entire galaxies. They emit massive amounts of energy across various wavelengths, including radio waves, visible light, ultraviolet light, and X-rays. The luminosity of quasars is attributed to the accretion of mass onto supermassive black holes at the centers of galaxies. As matter falls into the black hole, it releases an enormous amount of energy in the form of light.
Statement 2: They are not found in galaxies that have supermassive black holes.
This statement is incorrect. In reality, quasars are directly associated with galaxies that host supermassive black holes. It is believed that the intense radiation emitted by quasars originates from the accretion disk surrounding these black holes. As matter spirals into the black hole, it forms a disk of hot, glowing gas and dust. The energy released during this process produces the luminosity observed in quasars.
Explanation:
The given statements can be summarized as follows:
1. Quasars are very luminous objects in faraway galaxies. (Correct)
2. They are not found in galaxies that have supermassive black holes. (Incorrect)
The first statement correctly describes quasars as exceptionally bright objects located in distant galaxies. These objects emit enormous amounts of energy, making them visible across vast cosmic distances.
However, the second statement is incorrect. Quasars are, in fact, associated with galaxies that possess supermassive black holes. The immense gravitational pull of these black holes enables the accretion of surrounding matter, leading to the formation of accretion disks and the release of tremendous energy observed in quasars.
Conclusion:
In conclusion, quasars are indeed highly luminous objects found in distant galaxies. They are intimately connected to galaxies hosting supermassive black holes, with the black hole's accretion disk being the source of the quasar's intense radiation. Therefore, only statement 1 is correct, and the correct answer is option 'A' - 1 only.
|
Explore Courses for Current Affairs exam
|
|
Similar Current Affairs Doubts
Top Courses for Current AffairsView all
Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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?
Question Description
Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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 Current Affairs 2025 is part of Current Affairs preparation. The Question and answers have been prepared according to the Current Affairs exam syllabus. Information about Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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 Current Affairs 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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 Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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 Current Affairs 2025 is part of Current Affairs preparation. The Question and answers have been prepared according to the Current Affairs exam syllabus. Information about Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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 Current Affairs 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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 Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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 Current Affairs.
Download more important topics, notes, lectures and mock test series for Current Affairs Exam by signing up for free.
Here you can find the meaning of Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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? defined & explained in the simplest way possible. Besides giving the explanation of
Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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?, a detailed solution for Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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? has been provided alongside types of Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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? theory, EduRev gives you an
ample number of questions to practice Consider the following statements regarding Quasars.1. Quasars are very luminous objects in faraway galaxies.2. They are not found in galaxies that have supermassive blackholes.Which of the above statements 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? tests, examples and also practice Current Affairs tests.
|
|
Explore Courses for Current Affairs exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup