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Critical frequency $\nu_c$ for ionsphere is

$\begin{array}{1 1}(a)\;9N_{max}\\(b)\; 9\sqrt{N_{max}}\\(c)\;3\sqrt{N_{max}}\\(d)\;6N_{max}\end{array}$

1 Answer

Critical frequency $\nu_c$ for ionsphere is $9\sqrt{N_{max}}$
Hence (b) is the correct answer.
answered Mar 17, 2014 by sreemathi.v
 
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