Wa-2 Phase and Group Velocity

Aim

To demonstrate the difference between phase and group velocity.

Apparatus

  • 4 channel C.R.O
  • 2 Signal generators
  • Leads

Phase and Group VElocity

Phase and Group Velocity Apparatus

Description

Two signal generators are connected to separate channel inputs on the four channel C.R.O. The third channel contains the sum of the two signals via the isolating resistors. If the two frequencies of the oscillators are approximately equal the resulting waveforms adequately demonstrate the phase and group velocity of the packet.

Video