A TV transmission tower has a height of ...

A TV transmission tower has a height of 240 m. Signals broadcast from this tower will be received by LOS communication at a distance of (assume the radius of earth to be `6.4 xx 10 ^(6) m`)

100km

110km

55km

120km

Text Solution

Verified by Experts

The correct Answer is:

Here, `h=240m,R=64xx10^(6)m`
The maximum distance on earth from the transmitter upto which a signal can be recived is
`d=sqrt(2Rh)=sqrt(2xx(6.4xx10^(6))xx240)`
`=55.4xx10^(3)m=55.4km`

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