Inhomogeneous Wave Equation, Absorption Coefficient, Refractive Index

Learn about the inhomogeneous wave equation, absorption coefficient, and complex refractive index in this 32-minute lecture from NPTEL-NOC IITM. Professors Sivarama Krishnan (IIT Madras), Pranawa Deshmukh (IIT Tirupati), and Vinay Pramod (IIT Tirupati) recap key concepts from previous lectures, providing a thorough explanation of these fundamental physics principles. Gain a deeper understanding of how these concepts interrelate and their importance in wave propagation theory.