Question
Physics Question on communication systems
What fraction of the surface area of earth can be covered to establish communication by one geostationary statellite?
A
21
B
31
C
41
D
81
Answer
31
Explanation
Solution
We uses three geostationary satellites placed at the vertices of an equilateral triangle, then the entire earth can be covered by the communication network. cach satellite covers 1/3 of the globe.