Question:

The Big Bang theory for the origin of Universe was first proposed by:

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The term "Big Bang" was actually coined by Fred Hoyle in a radio broadcast, ironically as a derogatory term because he preferred a different model of the universe.
Updated On: Jun 5, 2026
  • Fred Hoyle
  • Edwin Hubble
  • Laplace
  • Georges Lemaître
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The Correct Option is D

Solution and Explanation

Concept: Cosmology attempts to explain the origin and development of the universe. The Big Bang theory is the prevailing scientific model for the origin of the observable universe.

Step 1: Distinguishing the contributors to the theory.
While Edwin Hubble provided observational evidence that the universe is expanding, the theoretical proposal of the universe starting from a single point was developed by someone else.

Step 2: Identifying the proposer.
Georges Lemaître, a Belgian priest and physicist, was the first to propose that the universe began from the expansion of a "primeval atom," which is the foundation of the Big Bang theory. equation Proposer of Big Bang Theory = Georges Lemaître equation center Georges Lemaître center
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