Q. Which of the following statement about Gravitational Lensing is/are correct?
1. Gravitational Lensing occurs when a huge amount of matter, like a cluster of galaxies, creates a very strong gravitational field.
2. The ‘Earendel’ Star has been recently discovered by phenomena of ‘gravitational lensing’.
Select the correct answer using the codes given below:
Answer: C
Notes:
- Gravitational Lensing Einstein’s General Theory of Relativity predicts that light can be bent by gravity.
- Gravitational Lensing occurs when a huge amount of matter, like a cluster of galaxies, creates a very strong gravitational field.
- This field distorts and magnifies the light from distant galaxies that are behind it but in the same line of sight. The effect is like looking through a giant magnifying glass. This effect allows researchers to study the details of early galaxies too far away to be seen with current technology and telescopes.
- ‘Earendel’ Star NASA’s Hubble Space Telescope has discovered the farthest star ever seen to date. It has been nicknamed as Earendel. It means ‘morning star’ in Old English. The star is more than 12.9 billion light-years away and likely existed within the first billion years after the beginning of the universe. The star has been discovered by phenomena of ‘gravitational lensing’.
Source: EPIC May 2022
