Question

RADAR is used for
A) locating submerged submarines
B) receiving a signals in a radio receiver
C) locating geostationary satellites
D) detecting and locating the position of objects such as aero planes

Answer 1

Hint: There are many ways to use Radar to send and receive valuable information in the form of waves. It is helpful in detecting incoming signals during war and also used by a geologist for earthquake detection. RADAR also used to understand the environment condition and climatic changes.

Complete answer:
RADAR long form is Radio Detection and Ranging System. It is basically an electromagnetic system used to detect the location and distance of an object from the point where the RADAR is placed. It works by radiating energy into space and monitoring the echo or we can say reflected signal from the objects RADAR is use in many industries military, law enforcement, space, remote sensing of environment, aircraft navigation, ship navigation, and air traffic controller. In aircraft navigation, . It operates in the UHF and microwave range because microwaves have short wavelength hence low energy dispersion during long distance communication. So, they are used in the RADAR system. It is used to track and detect satellites and spacecraft, RADAR in satellites are used for remote sensing hence it is used for safe landing and docking of spacecraft. In aircraft navigation, ground mapping and weather avoidance RADARs are used in aircraft to navigate it properly. This technology used an aircraft to ensure the location of obstacles which can be a threat to the plan of flight.

Hence, the option D is the correct answer.

Note:
Radar is nothing but an identification system, which receives electromagnetic waves to find objects like weather formation, ships, aircraft, vehicles and many more. Also Antennas of radar is used to track storms and intensity of precipitation.