EXPLANATION
Question: Which branch of physics focuses on the behavior of matter and energy at the atomic and subatomic levels?
- a) Quantum mechanics
- b) Acoustics
- c) Astrophysics
- d) Geophysics
ANSWER: a) Quantum mechanics
EXPLANATION:
The branch of physics that focuses on the behavior of matter and energy at the atomic and subatomic levels is a) Quantum mechanics. Quantum mechanics is a fundamental theory in physics that describes the behavior of particles such as electrons, protons, and photons at very small scales. It deals with the principles of wave-particle duality, uncertainty, and quantization, providing a mathematical framework to understand the behavior of particles and their interactions. Acoustics is the branch of physics that studies sound and its properties, while astrophysics focuses on the study of celestial objects and phenomena in the universe. Geophysics deals with the study of the Earth and its physical properties and processes.
