Iffc is the critical frequency of radio waves for reflection by the ionosphere andNmax is the density of free electrons in the ionosphere

Iffc is the critical frequency of radio waves for reflection by the io

1.	Iffc is the critical frequency of radio waves for reflection by the ionosphere andNmax is the density of free electrons in the ionosphere
Answer» `f_(C)prop N_("max")` `f_(c)prop(1)/(N_("max"))` `f_(c)prop(1)/sqrt(N_("max"))` `f_(c)propsqrt(N_("max"))` Answer :D

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Iffc is the critical frequency of radio waves for reflection by the ionosphere andNmax is the density of free electrons in the ionosphere

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