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What did the discovery of gravitational waves provide strong evidence for?
- a)Existence of extraterrestrial life
- b)Existence of dark matter
- c)Existence of black holes
- d)Existence of parallel universes
Correct answer is option 'C'. Can you explain this answer?
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What did the discovery of gravitational waves provide strong evidence ...
Understanding the Discovery of Gravitational Waves
- The discovery of gravitational waves provides strong evidence for the existence of black holes, specifically binary black hole systems. This breakthrough came from the Laser Interferometer Gravitational-Wave Observatory (LIGO) in 2015.
- Gravitational waves are ripples in the fabric of spacetime caused by the acceleration of massive objects. They were first proposed by Albert Einstein in his theory of general relativity in 1915. However, it took a century, until 2015, for their existence to be confirmed experimentally by LIGO.
- The detection was of a signal consistent with the merger of two black holes, each about 30 times the mass of the Sun, located around 1.3 billion light years away.
Implication of the Discovery
- The detection of gravitational waves opened up a new way of observing the universe, complementing traditional light-based astronomy. This is often referred to as "gravitational wave astronomy."
- The discovery also provided the first direct evidence of black holes, and particularly of binary black hole systems. While black holes had been indirectly observed before, this was the first time an event involving black holes could be detected directly, without relying on the effects the black holes had on their surroundings.
Why Not Other Options?
- The discovery of gravitational waves does not provide direct evidence for the existence of extraterrestrial life, dark matter, or parallel universes. While gravitational waves are a powerful new tool in astronomy, they do not specifically indicate the presence of life, dark matter, or other universes.
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What did the discovery of gravitational waves provide strong evidence for?a)Existence of extraterrestrial lifeb)Existence of dark matterc)Existence of black holesd)Existence of parallel universesCorrect answer is option 'C'. Can you explain this answer?
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