Radar acronym meaning?

• A. Rapid Detection and Reporting
• B. Radio Data and Reporting
• C. Radio Detection and Ranging
• D. Range and Detection Radar

Answer: (C)

Radar stands for Radio Detection and Ranging. This name shows the two main functions: using radio waves to find objects and to determine how far away they are. The radio part indicates the type of waves used, while detection means noticing that something is present and ranging means measuring the distance to it, typically by timing how long the radio pulse takes to return and applying the speed of light.

The other phrases don’t fit because they swap or omit parts of the meaning: rapid instead of radio, data or reporting instead of detection, and range instead of ranging. So the best description is Radio Detection and Ranging.