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A transmitting antenna has a height of 320 \mathrm{~m} and that of receiving antenna is 2000 \mathrm{~m}. The maximum distance between them for satisfactory communication in line of sight mode is 'd'. The value of ' d ' is ________\mathrm{km}.
 

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Range\, of\, communication= \sqrt{2h_{T}R}+\sqrt{2h_{R}R}
                                                        = \sqrt{2\times 320\times 6400\times 10^{3}}+\sqrt{2\times 2000\times 6400\times 10^{3}}
=80\times 80\times 10+200\times 80\times 10
=64000+160000
=224000 \, m
=224 \, km

Posted by

vishal kumar

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