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Calculate the phase velocity of electromagnetic wave having electromagnetic density and frequency for D layer, `N=400 "electron"//cm^(3), v=300kHz`
A. `3xx10^(8) ms_(1)`
B. `3.75xx10^(8) ms^(-1)`
C. `6.8xx10^(8) ms^(-1)`
D. `1.1xx10^(9) ms^(-1)`

1 Answer

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Best answer
Correct Answer - b
`mu=sqrt(1-(80.6N)/(v^(2)))~~0.80`
Again, `v(c)/(mu)`

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