Question

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

• A. Fred Hoyle
• B. Edwin Hubble
• C. Laplace
• D. Georges Lemaître

Hint:

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.

Answer 1

The Correct Option is D

Step 1: What is asked.
We need the person who first proposed the Big Bang theory for how the universe began.

Step 2: The theory in short.
The Big Bang theory says the whole universe started from a tiny dense point and then expanded outward.

Step 3: Tell the names apart.
Edwin Hubble showed by observation that the universe is expanding, but he did not first propose the starting point idea.

Step 4: The real proposer.
Georges Lemaitre, a priest and physicist from Belgium, first suggested that the universe grew from a single primeval atom.

Step 5: Remove others.
Fred Hoyle actually backed a different, steady state idea, and Laplace worked on an older nebular theory.

Step 6: Conclusion.
So the Big Bang theory was first proposed by Georges Lemaitre.
Answer: Georges Lemaitre