B.Tech sem I Engineering Physics U-V Chapter 2-Ultrasonic waves B.Tech sem I Engineering Physics U-V Chapter 1-SOUND B.Tech sem I Engineering Physics U-IV Chapter 1-ATOMIC PHYSICS B.Tech sem I Engineering Physics U-IV Chapter 2-X-Rays B.Tech sem I Engineering Physics U-III Chapter 1-THE SPECIAL THEORY OF RELATIVITY B.Tech sem I Engineering Physics U-III Chapter 2-Superconductivity B.Tech sem I Engineering Physics U-II Chapter 1-Band theory of solid B.Tech sem I Engineering Physics U-II Chapter 2-LASER B.Tech sem I Engineering Physics U-I Chapter 1-Optical fiber B.Tech sem I Engineering Physics U-I Chapter 2-Dielectrics