Which of the following is NOT an example of elementary modern physics?
Classical mechanics
Quantum mechanics
Special relativity
Nuclear physics
Correct answer is A
Classical mechanics is a branch of physics that deals with the motion of macroscopic objects. It is based on the principles of Newton's laws of motion and is not considered to be part of elementary modern physics.
The other three options, quantum mechanics, special relativity, and nuclear physics, are all considered to be part of elementary modern physics because they deal with the behavior of matter and energy at the atomic and subatomic levels.