In quantum mechanics, electrons in a solid material exist in specific "energy bands." By doping silicon with impurities (a process called doping), physicists created "p-n junctions"—the foundation of diodes and transistors. These junctions control the flow of electrons with quantum precision.
Lasers, which stand for "Light Amplification by Stimulated Emission of Radiation," are a direct application of quantum light theory, used for everything from LASIK eye surgery to precision oncology. 3. Global Positioning System (Relativity) Applications Of Modern Physics
Magnetic Resonance Imaging works by manipulating the nuclear spin of hydrogen atoms in your body using powerful magnets. In quantum mechanics, electrons in a solid material