Grand unified theories, or GUTs, predict that at temperatures above 10²⁷ K, the A) strong and weak forces are indistinguishable from each other, but the other forces are different. B) strong, weak, electromagnetic, and gravitational forces are indistinguishable from each other. C) weak and electromagnetic forces are indistinguishable from each other, but the other forces are different. D) strong, weak, and electromagnetic forces are indistinguishable from each other, but gravity is different.

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Quizplus · Accepted Answer

Grand unified theories (GUTs) suggest that at extremely high temperatures (above $10^{27} K$), the strong, weak, and electromagnetic forces merge into a single force, leaving gravity as a separate force.

Grand Unified Theories, or GUTs, Predict That at Temperatures Above