A TV transmitting antenna is 125 m tall. How much service area can this transmitting antenna cover, if the receiving antenna is at the ground level? Radius of earth-6400 km
Text Solution
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`h_(T)=125m` and R=`6400xx10^(3)m` `d=sqrt(2h_(1)R)=sqrt(2xx64xx10^(5)xx125)=40xx10^(3)m`=40km Area covered A=`pid^(2)=3.14xx(40)^(2)=5024km^(2)`
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