AU - Kaushal, S. AU - Parmar, K. AU - Priya, TI - Wave Propagation in Generalized Thermodiffusion Elastic Medium with Impedence Boundary Condition PT - JOURNAL ARTICLE TA - IJMSI JN - IJMSI VO - 17 VI - 2 IP - 2 4099 - http://ijmsi.ir/article-1-1385-en.html 4100 - http://ijmsi.ir/article-1-1385-en.pdf SO - IJMSI 2 ABĀ  - In the present investigation, we study the reflection of plane waves, that is, Longitudinal displacement wave(P-Wave), Thermal wave(T-Wave) and Mass Diffusive wave(MD-Wave) in thermodiffusion elastic-half medium which is subjected to impedence boundary condition in context of one relaxatioon time theory given by Lord and Shulman theory (L-S) and the Coupled theory (C-T) of thermoelasticity. The expressions of amplitude ratios are obtained numerically and their variation with angle of incidence is presented graphically for a particular model to emphasize on the impact of impedence parameter, relaxation time and diffusion. Some special cases are also deduced. CP - IRAN IN - Department of Mathematics, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Punjab, India LG - eng PB - IJMSI PG - 1 PT - Research paper YR - 2022