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Consider the following statements regarding the phenomenon of “Gravitational lensing”.
  1. A gravitational lens can occur when a huge amount of matter, like a cluster of galaxies, creates a gravitational field that distorts and magnifies the light from distant galaxies that are behind it but in the same line of sight.
  2. Gravitational lenses act like natural cosmic telescopes.
  3. Gravitational lensing is opposite to the Einstein’s theory of general relativity.
  4. More massive the object, the stronger is its gravitational field.
Which of the above statements is/are correct?
  • a)
    1, 2 
  • b)
    1, 2, 4 
  • c)
    1, 3, 4 
  • d)
    2, 3, 4
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements regarding the phenomenon of “G...
  • The phenomenon of gravitational lensing occurs when a huge amount of matter, such as a massive galaxy, cluster of galaxies or a black hole, creates a gravitational field that distorts and magnifies the light from objects behind it.
  • Gravitational lensing is based on Einstein’s theory of general relativity (Mass bend light).
  • Normal lenses such as the ones in a magnifying glass work by bending light rays that pass through them in a process known as refraction, in order to focus the light somewhere else.
  • Similarly, the gravitational field of a massive object causes light rays passing close to that object to be bent and refocused somewhere else.
  • The more massive the object, the stronger its gravitational field and hence the greater the bending of light rays – just like using denser materials to make optical lenses results in a greater amount of refraction.
  • In effect, gravitational lenses act like natural cosmic telescopes.
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Consider the following statements regarding the phenomenon of “Gravitational lensing”. A gravitational lens can occur when a huge amount of matter, like a cluster of galaxies, creates a gravitational field that distorts and magnifies the light from distant galaxies that are behind it but in the same line of sight. Gravitational lenses act like natural cosmic telescopes. Gravitational lensing is opposite to the Einstein’s theory of general relativity. More massive the object, the stronger is its gravitational field.Which of the above statements is/are correct?a)1, 2b)1, 2, 4c)1, 3, 4d)2, 3, 4Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements regarding the phenomenon of “Gravitational lensing”. A gravitational lens can occur when a huge amount of matter, like a cluster of galaxies, creates a gravitational field that distorts and magnifies the light from distant galaxies that are behind it but in the same line of sight. Gravitational lenses act like natural cosmic telescopes. Gravitational lensing is opposite to the Einstein’s theory of general relativity. More massive the object, the stronger is its gravitational field.Which of the above statements is/are correct?a)1, 2b)1, 2, 4c)1, 3, 4d)2, 3, 4Correct 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 Consider the following statements regarding the phenomenon of “Gravitational lensing”. A gravitational lens can occur when a huge amount of matter, like a cluster of galaxies, creates a gravitational field that distorts and magnifies the light from distant galaxies that are behind it but in the same line of sight. Gravitational lenses act like natural cosmic telescopes. Gravitational lensing is opposite to the Einstein’s theory of general relativity. More massive the object, the stronger is its gravitational field.Which of the above statements is/are correct?a)1, 2b)1, 2, 4c)1, 3, 4d)2, 3, 4Correct 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 Consider the following statements regarding the phenomenon of “Gravitational lensing”. A gravitational lens can occur when a huge amount of matter, like a cluster of galaxies, creates a gravitational field that distorts and magnifies the light from distant galaxies that are behind it but in the same line of sight. Gravitational lenses act like natural cosmic telescopes. Gravitational lensing is opposite to the Einstein’s theory of general relativity. More massive the object, the stronger is its gravitational field.Which of the above statements is/are correct?a)1, 2b)1, 2, 4c)1, 3, 4d)2, 3, 4Correct answer is option 'B'. Can you explain this answer?.
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