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What is the prevailing theory about the universe just before the Big Bang?
  • a)
    The universe was filled with stars and galaxies.
  • b)
    The universe was an empty void with no matter or energy.
  • c)
    The universe was filled with an intensely concentrated and unstable form of energy.
  • d)
    The universe existed in a steady state.
Correct answer is option 'C'. Can you explain this answer?
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What is the prevailing theory about the universe just before the Big B...
The prevailing theory is that the universe just before the Big Bang was filled with an intensely concentrated and unstable form of energy.
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What is the prevailing theory about the universe just before the Big B...
The prevailing theory about the universe just before the Big Bang is that it was filled with an intensely concentrated and unstable form of energy. This theory is known as the singularity theory or the hot and dense state theory.

Explanation:
- Big Bang Theory: The Big Bang theory is the leading explanation for the origin and evolution of the universe. According to this theory, the universe began as an extremely hot and dense state, and then expanded and cooled over time.
- Singularity: The singularity refers to a point of infinite density and temperature, where the laws of physics as we know them break down. It is believed that the universe existed in this singularity just before the Big Bang.
- Intensely Concentrated Energy: The singularity theory suggests that all the matter and energy of the universe were compressed into an incredibly small and dense region. This energy was so concentrated that the laws of physics as we understand them could not describe its behavior.
- Unstable State: The singularity was an unstable state, meaning that it could not persist indefinitely. The laws of physics dictate that such a highly concentrated and unstable energy state would eventually initiate a rapid expansion, leading to the Big Bang.
- Expansion and Cooling: As the singularity rapidly expanded, the energy began to cool down. This cooling allowed the formation of elementary particles, such as protons, neutrons, and electrons. These particles eventually combined to form atoms and, later on, stars and galaxies.
- Evidence: The singularity theory is supported by various lines of evidence, including the observed expansion of the universe, the abundance of light elements, and the cosmic microwave background radiation.

In conclusion, the prevailing theory suggests that just before the Big Bang, the universe was in an intensely concentrated and unstable state of energy known as the singularity. This theory provides an explanation for the origin and evolution of the universe as we know it today.
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What is the prevailing theory about the universe just before the Big Bang?a)The universe was filled with stars and galaxies.b)The universe was an empty void with no matter or energy.c)The universe was filled with an intensely concentrated and unstable form of energy.d)The universe existed in a steady state.Correct answer is option 'C'. Can you explain this answer?
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What is the prevailing theory about the universe just before the Big Bang?a)The universe was filled with stars and galaxies.b)The universe was an empty void with no matter or energy.c)The universe was filled with an intensely concentrated and unstable form of energy.d)The universe existed in a steady state.Correct answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about What is the prevailing theory about the universe just before the Big Bang?a)The universe was filled with stars and galaxies.b)The universe was an empty void with no matter or energy.c)The universe was filled with an intensely concentrated and unstable form of energy.d)The universe existed in a steady state.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the prevailing theory about the universe just before the Big Bang?a)The universe was filled with stars and galaxies.b)The universe was an empty void with no matter or energy.c)The universe was filled with an intensely concentrated and unstable form of energy.d)The universe existed in a steady state.Correct answer is option 'C'. Can you explain this answer?.
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