13. Electromagnetic waves traveling through Earth's ionosphere obey a dispersion relation w(k) = √b+ (kc)². For a pulse with central frequency wo, find the phase velocity and group velocity in terms of wh.

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13. Electromagnetic waves traveling through Earth's ionosphere obey a dispersion relation
w(k) = √b+ (kc)².
For a pulse with central frequency wo, find the phase velocity and group velocity in
terms of wh.
Transcribed Image Text:13. Electromagnetic waves traveling through Earth's ionosphere obey a dispersion relation w(k) = √b+ (kc)². For a pulse with central frequency wo, find the phase velocity and group velocity in terms of wh.
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