67. RADAR is used for A.Detecting and locating the position of objects such as Aeroplanes B.Locating submerged submarines C.Locating geostationary satellites D.Receiving a signals in a radio receiver
Option A Solution: Radar, electromagnetic sensor used for detecting, locating, tracking, and recognizing objects of various kinds at considerable distances. It operates by transmitting electromagnetic energy toward objects, commonly referred to as targets, and observing the echoes returned from them.
