Space wave propagation is used in a) microwave communication b) satellite communication c) TV transmission
A
Only a
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B
Both a & b
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C
Both b & c
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D
a ,b & c
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Solution
The correct option is D a ,b & c Space wave propagation is a method by which high frequency waves are transmitted to large distances as they are reflected by the ionosphere. Microwaves are HF so space wave method is employed for their communication. Satellite and TV transmission also use space wave.