Multiple Choice
When the Big Bang began, all the fundamental forces were unified and behaved like a single force. As the universe expanded and cooled during the Big Bang, when did gravity first become a separate force?
A) at the start of quark confinement, when the universe was about 10-6 s old
B) at the start of the inflationary period, when the universe was about 10-35 s old
C) at the end of the inflationary period, when the universe was about 10-33 s old
D) at the Planck time, when the universe was about 10-43 s old
Correct Answer:
Verified
Correct Answer:
Verified
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