A TV transmission tower antenna is at a height of 20 m. How much service area can it cover if the receiving antenna is (i) at ground level, (ii) at a height of 25 m? Calculate the percentage increase in area covered in case (ii) relative to case (i).
(i) When receiver is at ground level, then service area covered. = = = = (ii) When receiver is at height of 25 m,area covered. = =349%