PHYSICS · Single correct · GCSE · Physics · Space Physics · Space Physics
Problem
In a line of sight ratio communication, a distance of about 50 km is kept between the transmitting and receiving antennas. If the height of the receiving antenna is 70m, then the minimum height of the transmitting antenna should be : (Radius of the Earth = 6.4×106 m).
(1) 20 m
(2) 51 m
(3) 32 m
(4) 40 m