hello! i want to know that what is radar?

Question

anonymous · Answer

a radar is a device that detects any object in a defined proximity..

anonymous · Answer

Although the first answer is correct the way radar detects objects around it is by sending out a beam of radiowaves. Radar can be used to determine the range, altitude, direction, or speed of objects.The term RADAR was coined in 1940. It originally stood for RAdio Detection And Ranging, and was developed by several governments during WW2. If you'd like to know more about this, go to http://en.wikipedia.org/wiki/Radar

anonymous · Answer

Radar is Radio Detection and Ranging basically it use Radio wave frequency and using radio frequency system can detect direction of object, speed of the object and what is height of that object. There can be a antenna which sends Radio frequency after that if some objects passes the environment.... System can generate alert message. I think it helps you.

dean.shyy · Answer

Radar is a detection device or mechanism. It can detect anything, depending on what it is detecting.