Where can I find the derivation of the Group Velocity formula?

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SUMMARY

The derivation of the Group Velocity formula is defined as Group Velocity = Phase Velocity + K(dVp/dK). This formula is crucial in understanding wave propagation in various fields of physics. The derivation can be found on the Wikipedia page dedicated to Group Velocity, which provides additional expressions and insights into the concept.

PREREQUISITES
  • Understanding of wave mechanics
  • Familiarity with the concepts of Phase Velocity and Group Velocity
  • Basic knowledge of calculus, specifically derivatives
  • Access to online resources such as Wikipedia for further reading
NEXT STEPS
  • Research the implications of Group Velocity in optical fibers
  • Study the relationship between Phase Velocity and Group Velocity in different media
  • Explore advanced topics in wave mechanics, such as dispersion relations
  • Review mathematical techniques for deriving wave equations
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Physics students, researchers in wave mechanics, and professionals in telecommunications or optics who seek to deepen their understanding of wave propagation principles.

PsychonautQQ
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I was wondering where the derivation of the formula
Group Velocity = Phase Velocity + K(dVp/dK)
 
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