摘要
在几种色散媒质中证明了机械波、电磁波和物质波的群速度等于波能量的传播速度 .
It is proved that in some dispersive media ,the group velocities of mechanical wave,electromagnetic wave and matter wave are the same as velocities of wave energy propagation.
出处
《天津商学院学报》
2002年第3期40-42,53,共4页
Journal of Tianjin University of Commerce