Physical optics is a branch of optics that focuses on the wave nature of light and its interactions with matter. Unlike geometrical optics, which primarily deals with the propagation of light in terms of rays and prisms, physical optics examines phenomena such as interference, diffraction, and polarization, which cannot be adequately explained by ray optics alone. Key concepts in physical optics include: 1. **Wave Nature of Light**: Light is treated as a wave, which means it is subject to wave phenomena.
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