Immediately after the cosmological singularity, the four forces were indistinguishable. Then they began to "branch off" and become separate. Which was the last of the four to branch off from the electromagnetic force?
A) gravitation
B) weak force
C) strong force
D) The other forces branched off at the same instant in time.

Question

Quizplus · Accepted Answer

The weak force was the last of the four fundamental forces to branch off from the electromagnetic force. This separation occurred after the strong force and gravitation had already become distinct, in the very early universe as it cooled down from the Big Bang.

Immediately After the Cosmological Singularity, the Four Forces Were Indistinguishable