Question:
The dispersion relation for electromagnetic waves travelling in a plasma is given by \(ω^2 = c^2k^2-ω^2_ρ\), where c and \(ω_ρ\), are constants. In this plasma, group velocity will be
The dispersion relation for electromagnetic waves travelling in a plasma is given by \(ω^2 = c^2k^2-ω^2_ρ\), where c and \(ω_ρ\), are constants. In this plasma, group velocity will be
Updated On: Mar 17, 2025
- proportional to but not equal to phase velocity
- equal to the phase velocity
- inversely proportional to the phase velocity
- constant
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The Correct Option is C
Solution and Explanation
The correct option is (C):inversely proportional to the phase velocity
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