1. Introduction: Why “Modern Physics” and Why PDF Notes? Modern physics broadly refers to the post-Newtonian developments in physics that emerged around the turn of the 20th century. It primarily encompasses Quantum Mechanics and Relativity (both Special and General). Unlike classical mechanics or electromagnetism, modern physics challenges our intuitive understanding of reality—introducing wave-particle duality, quantization of energy, spacetime curvature, and uncertainty principles.
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1. Introduction: Why “Modern Physics” and Why PDF Notes? Modern physics broadly refers to the post-Newtonian developments in physics that emerged around the turn of the 20th century. It primarily encompasses Quantum Mechanics and Relativity (both Special and General). Unlike classical mechanics or electromagnetism, modern physics challenges our intuitive understanding of reality—introducing wave-particle duality, quantization of energy, spacetime curvature, and uncertainty principles.
