For an object that is detected 15 miles from a radar set, what is the approximate time required for the rf energy to travel to and return from the object?
A. 7 microseconds
B. 185 microseconds
C. 271 microseconds
D. 927 microseconds
Hint : 𝑟𝑎𝑛𝑔𝑒 = 𝑒𝑙𝑎𝑝𝑠𝑒𝑑 𝑡𝑖𝑚𝑒 / 12.36 𝑢𝑠𝑒𝑐.𝑝𝑒𝑟 𝑛𝑎𝑢𝑡𝑖𝑐𝑎𝑙 𝑚𝑖𝑙𝑒
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Answer: B
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