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The electromagnetic waves of frequency $2\: MHz\: to\: 30\: MHz$ are:

$\begin {array} {1 1} (a)\; In\: ground \: wave\: propagation & \quad (b)\;In\: sky\: wave\: propagation \\ (c)\;In\: microwave\: propagation & \quad (d)\;In\: satellite\: communication \end {array}$

 

1 Answer

Ans : (b)
In sky wave propagation
answered Feb 25, 2014 by thanvigandhi_1
 

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