What does RADAR stand for?

What does RADAR stand for?

• A. Radio Detection and Ranging
• B. Rapid Detection and Ranging
• C. Radio Display and Reading
• D. Range and Detection Radio

Answer: (A)

RADAR stands for Radio Detection and Ranging. The “Radio” part indicates the use of radio waves to probe the scene. “Detection” means sensing whether something is present by receiving echoes of the emitted radio pulses. “Ranging” refers to measuring how far away the object is, typically by timing the round-trip travel of the pulse or analyzing related signal properties. Together, this describes a system that emits radio energy, detects reflections from targets, and uses that information to determine distance. The other options don’t reflect the established terminology, since they alter the wording or focus (speed, display, or an unsupported ordering).

RADAR stands for Radio Detection and Ranging. The “Radio” part indicates the use of radio waves to probe the scene. “Detection” means sensing whether something is present by receiving echoes of the emitted radio pulses. “Ranging” refers to measuring how far away the object is, typically by timing the round-trip travel of the pulse or analyzing related signal properties. Together, this describes a system that emits radio energy, detects reflections from targets, and uses that information to determine distance. The other options don’t reflect the established terminology, since they alter the wording or focus (speed, display, or an unsupported ordering).