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With reference to the Laser Interferometer Gravitational Wave- Observatory (LIGO), which of the following statements is incorrect?
  • a)
    LIGO - India is being funded by the department of atomic energy and department of science and technology.
  • b)
    One of the aims of LIGO mission is to study the cosmic sources simultaneously over a wide range of the electromagnetic spectrum.
  • c)
    It will help in observing the phenomenon of the explosion of giant stars, the collision of ultradense dead ones and the coming together of black holes.
  • d)
    It validated the existence of gravitational waves which Einstein has predicted in his general theory of relativity.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
With reference to the Laser Interferometer Gravitational Wave- Observ...
Option (b) is the correct answer.
Option a is correct. LIGO- India is being funded by the department of atomic energy and department of science and technology.
Option b is incorrect. It is the goal of an Astrosat mission to study the cosmic sources simultaneously over a wide range of the electromagnetic spectrum. LIGO has the aim of detecting gravitational waves which provides information about the evolution of galaxies and black holes.
Option c is correct. The ability to detect gravitational waves opens up the “new field of gravitational-wave astronomy”, in which scientists will now “listen to the waves” to know more about the objects that can produce them, including black holes, neutron stars and supernovae and directly study violent events like mergers of very massive and dense stars. Till LIGO came into the picture, black holes were never directly detected.
Option d is correct. According to the theory of general relativity, the pair of black holes orbiting around each other lost energy through the emission of gravitational waves. As the holes lost energy, they were gravitationally drawn closer to each other. As they came closer, the spinning became faster and they emitted even more gravitational waves and lost even more energy. The LIGO validated the existence of gravitational waves.
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Most Upvoted Answer
With reference to the Laser Interferometer Gravitational Wave- Observ...
The incorrect statement is option B: One of the aims of LIGO mission is to study the cosmic sources simultaneously over a wide range of the electromagnetic spectrum.

Explanation:

Laser Interferometer Gravitational-Wave Observatory (LIGO) is a large-scale physics experiment and observatory to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. It consists of two widely separated interferometers within the United States, one in Hanford, Washington, and the other in Livingston, Louisiana.

Statement A: LIGO - India is being funded by the department of atomic energy and department of science and technology.
This statement is correct. LIGO - India is a planned advanced gravitational-wave observatory to be located in India. It is being funded by the Department of Atomic Energy (DAE) and the Department of Science and Technology (DST) of the Government of India.

Statement B: One of the aims of LIGO mission is to study the cosmic sources simultaneously over a wide range of the electromagnetic spectrum.
This statement is incorrect. The primary aim of the LIGO mission is to detect and study gravitational waves, not electromagnetic waves. Gravitational waves are ripples in the fabric of spacetime caused by the acceleration of massive objects. LIGO uses laser interferometry to measure tiny changes in the lengths of two perpendicular arms caused by passing gravitational waves.

Statement C: It will help in observing the phenomenon of the explosion of giant stars, the collision of ultradense dead ones, and the coming together of black holes.
This statement is correct. LIGO is designed to observe and study various astrophysical phenomena, including the explosion of giant stars (supernovae), the collision of ultradense dead stars (neutron stars), and the merger of black holes. These events can generate gravitational waves that can be detected by LIGO.

Statement D: It validated the existence of gravitational waves which Einstein has predicted in his general theory of relativity.
This statement is correct. LIGO made history in 2015 by being the first observatory to directly detect gravitational waves. This discovery confirmed a major prediction of Albert Einstein's general theory of relativity, which he proposed over a century ago. The detection of gravitational waves by LIGO opened up a new window into the universe and has since led to the observation of several gravitational wave events.
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With reference to the Laser Interferometer Gravitational Wave- Observatory (LIGO), which of the following statements is incorrect?a)LIGO - India is being funded by the department of atomic energy and department of science and technology.b)One of the aims of LIGO mission is to study the cosmic sources simultaneously over a wide range of the electromagnetic spectrum.c)It will help in observing the phenomenon of the explosion of giant stars, the collision of ultradense dead ones and the coming together of black holes.d)It validated the existence of gravitational waves which Einstein has predicted in his general theory of relativity.Correct answer is option 'B'. Can you explain this answer?
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With reference to the Laser Interferometer Gravitational Wave- Observatory (LIGO), which of the following statements is incorrect?a)LIGO - India is being funded by the department of atomic energy and department of science and technology.b)One of the aims of LIGO mission is to study the cosmic sources simultaneously over a wide range of the electromagnetic spectrum.c)It will help in observing the phenomenon of the explosion of giant stars, the collision of ultradense dead ones and the coming together of black holes.d)It validated the existence of gravitational waves which Einstein has predicted in his general theory of relativity.Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about With reference to the Laser Interferometer Gravitational Wave- Observatory (LIGO), which of the following statements is incorrect?a)LIGO - India is being funded by the department of atomic energy and department of science and technology.b)One of the aims of LIGO mission is to study the cosmic sources simultaneously over a wide range of the electromagnetic spectrum.c)It will help in observing the phenomenon of the explosion of giant stars, the collision of ultradense dead ones and the coming together of black holes.d)It validated the existence of gravitational waves which Einstein has predicted in his general theory of relativity.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to the Laser Interferometer Gravitational Wave- Observatory (LIGO), which of the following statements is incorrect?a)LIGO - India is being funded by the department of atomic energy and department of science and technology.b)One of the aims of LIGO mission is to study the cosmic sources simultaneously over a wide range of the electromagnetic spectrum.c)It will help in observing the phenomenon of the explosion of giant stars, the collision of ultradense dead ones and the coming together of black holes.d)It validated the existence of gravitational waves which Einstein has predicted in his general theory of relativity.Correct answer is option 'B'. Can you explain this answer?.
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