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Learn about contact angle hysteresis in this 46-minute lecture from NPTEL-NOC IITM. Explore the fundamental concepts of how liquids interact with solid surfaces, including advancing and receding contact angles, the causes of hysteresis, and its implications for wetting behavior. Understand how surface roughness, chemical heterogeneity, and other factors contribute to contact angle hysteresis and how this phenomenon affects applications in materials science, microfluidics, and surface engineering.
