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Gravitational Lensing
Recently, researchers plan to investigate how new stars are born using NASA’s James Webb Space Telescope. For this, they will take the help of a natural phenomenon called Gravitational Lensing. Consider the following statements regarding the gravitational lensing:
- The phenomenon occurs when a huge amount of matter, such as a massive galaxy or cluster of galaxies, creates a gravitational field that distorts and magnifies the light from objects behind it, but in the same line of sight.
- The investigation is a part of the programme called Targeting Extremely Magnified Panchromatic Lensed Arcs and Their Extended Star Formation (TEMPLATES).
Choose the correct answer from the codes given below:
A |
Only 1
|
|
B |
Only 2
|
|
C |
Both 1 and 2
|
|
D |
None of the above
|
Your Ans is
Right ans is C
Your Answer Is Correct
Your Answer Is Wrong
Explanation :
- Gravitational lensing occurs when a huge amount of matter - a galaxy cluster, for example - creates a gravitational field that magnifies light from objects behind it.
- The Milky Way today forms the equivalent of one Sun every year, but in the past, that rate was up to 100 times greater. NASA now plans to look billions of years into the past in order to understand how our Sun formed.
- The NASA program aimed at using gravitational lensing via its James Webb telescope(scheduled to launch in 2021) is called Targeting Extremely Magnified Panchromatic Lensed Arcs and Their Extended Star Formation (TEMPLATES). So, both the given statements are correct.
Source:Civil Services Chronicle Online
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