Sound WavesHard
Question
A radar has a power of 1 kW and is operatingat a frequency of 10 GHz. It is located on amountain top of height 500 m. The maximumdistance upto which it can detect object locatedon the surface of the earth (Radius of earth =6.4 × 106 m) is :-
Options
A.64 km
B.80 km
C.16 km
D.40 km
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