Question

A TV tower has a height $160m$. Its coverage range is nearly (Earth's radius, $R_e=6400km$ )

• A. 45255 m
• B. 55265 m
• C. 452.55 km
• D. 552.65 m

Answer 1

Answer: (A)

Given, height of a TV tower, $h=160m$
Radius of earth, $R=6400km=6.4\times 10^{6}m$
Coverage range of TV tower is given by
$d=\sqrt{2Rh}=\sqrt{2\times 6.4\times 10^6\times 160}=45254.8=45255m$