RADAR stands for RAdio Detection And Ranging. It is a detection system that uses radio waves to determine the range, angle, or velocity of objects. It transmits radio waves which are reflected by targets and detected by a receiver.
Radar is used for—
Asked in UPPCS Prelims 2008 · Topic: Defence Technology (Radar and Lidar Principles for Detection and Ranging)
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Answer: C. Determining the presence and location of objects with radio waves
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