What does RADAR stand for?

RADAR stands for "Radio Detection and Ranging." This term accurately describes the technology's primary function, which involves using radio waves to detect objects and determine their distance from the source of the radar signal.

The term "Radio Detection and Ranging" breaks down into two key components: "Radio" refers to the use of electromagnetic waves, specifically within the radio frequency spectrum, to transmit signals. "Detection" involves identifying the presence of objects within the radar's range, while "Ranging" refers to measuring the distance to those objects based on the time it takes for the radio waves to return to the source after bouncing off an object.

This definition underscores the fundamental principles behind how radar technology operates, making it vital for applications such as speed detection in law enforcement, air traffic control, and various forms of navigation. The other options provided do not accurately encapsulate the principles of radar technology, as they offer terms that don’t reflect the fundamental processes involved in radar operation.