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he maximum electron density in the ionos...

he maximum electron density in the ionosphere in the morning is `10^(10) m^(-3) ` At noon time, it increases to `2 xx 10^(10) m^(-3)`. Find the ratio of critical frequency at noon and the critical frequency in the morning.

A

`2.82`

B

`1.414`

C

`2.00`

D

`4.00`

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