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For sky wave propagation of a 18 MHz sig...

For sky wave propagation of a 18 MHz signal, what should be the minimum electron density in ionosphere ?

A

`4xx10^(12)m^(-3)`

B

`2xx10^(12)m^(-3)`

C

`4xx10^(14)m^(-3)`

D

`8xx10^(14)m^(-3)`

Text Solution

Verified by Experts

`v=9(N)^(1//2)`
or `N=(v^(2))/(9^(2))=`((18xx10^(6))^(2))/(81)=4xx10^(12)m^(-3)`
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