![]() Simply, the velocity of each individual runner within the group is different. ![]() At any given instant, the velocity of a particular runner is different relative to others. In order to understand the nature of the group velocity, let’s consider a race. This article tries to differentiate those differences in detail. The main difference between Phase Velocity and Group Velocity is that phase velocity is greater than the group velocity in a normal medium. These two quantities have very different and particular definitions and properties. Within this concept, there are two types of velocities namely phase velocity and group velocity. However, we must add many waves, having different angular frequencies and amplitudes in particular ways, in order to get a wave packet which represents a particle. Based on this concept, waves are used to represent particles as it is an essential step when we deal with particles in quantum physics. This dual nature of particles and waves allow us to represent a particle in terms of waves. This property of particles and waves is known as the wave- particle duality. ![]() In some cases, waves behave like particles. Main Difference – Phase Velocity vs Group VelocityĪccording to quantum physics, particles sometimes behave like waves.
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