Multiple Choice
Radar involves using an electromagnetic wave to detect an object by observing the reflected energy from that object.Assume an aircraft has a radar cross section of 710 m2,and the receiving antenna has a cross section twice as large.If the aircraft is 50 km away,what percentage of the radiated energy is eventually detected?
A) 1.0 × 10-15
B) 20
C) 1.6 × 10-13
D) 0.00040
Correct Answer:
Verified
Correct Answer:
Verified
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