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The Big Bang theory was propounded by:
1. Thomas Gold
2. Al-Biruni
3. Dr. Allen Sundes
4. George Lamaitre

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Correct Answer - Option 4 : George Lamaitre

The correct answer is George Lamaitre.

  • Big Bang Theory is the most widely accepted theory regarding the origin of the universe.
  • Big Bang Theory is also called expanding universe hypothesis.
  • The Big Bang theory was propounded by George Lamaitre.
  • According to Big Bang Theory, the universe originated from a tiny hot body with a giant explosion and it expanded rapidly.
  • This rapid expansion caused the universe to cool and resulted in its present stage.
  • Within 300,000 years from the Big Bang, the temperature dropped to 4,500K and gave rise to atomic matter.
  • The big band occurred approximately 13,75 billion years ago.
  • Edwin Hubble in 1920 provided evidence that the universe is expanding.

  • Thomas Gold was an Austrian-born American astrophysicist who was known steady-state model (alternative to the Big Bang theory).
  • Al-Biruni was the First Muslim Scholar to study Indian tradition.
  • Dr. Allen Sundes is the propounded of "Pulsating Universe Theory".

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