If a TV telecast is to cover a radius of 640 km, what should be the height of transmitting antenna?
A. 32000 m
B. 53000 m
C. 42000 m
D. 55000 m
Answer:A
If a TV telecast is to cover a radius of 640 km, what should be the height of transmitting antenna?
A. 32000 m B. 53000 m C. 42000 m D. 55000 m