In a line of sight radio communication a distance of about 50km is kept between the transmitting and receiving antennas. If the height of the receiving antennas 70 m, then the minimum height of the transmitting antenna should be:
(Radius of the Earth= )
20 m
51 m
32 m
40 m
d=Range=50km
Option 1)
20 m
Option 2)
51 m
Option 3)
32 m
Option 4)
40 m
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