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Questions  >>  CBSE XII  >>  Physics  >>  Communication systems
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The TV transmission tower in Delhi has a height of $340\;m$ . The distance up to which the broad cost can received , (taking the radius of earth to be $6.4 \times 10^{6}m)$ is

$\begin{array}{1 1} 100\;km \\ 60\;km \\ 66\;km \\ 670\;km \end{array} $

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