Which of the following fundamental forces is hardest for theorists to incorporate into an overall unified theory of nature?
A) Gravitational interaction
B) Strong interaction
C) Weak interaction
D) Electromagnetic interaction

Question

Quizplus · Accepted Answer

Gravitational interaction is the hardest for theorists to incorporate into an overall unified theory of nature, primarily because it is described by the general theory of relativity, which is a classical theory, whereas the other three forces are described by quantum mechanics. Combining these fundamentally different theories into a single framework, often referred to as quantum gravity, has proven to be a significant challenge.

Which of the Following Fundamental Forces Is Hardest for Theorists