Detecting and ranging (measuring the distance of) enemy craft in air (planes) and water (ships and subs).
they are both used in navigation.
This could mean:A radar attached to a balloonA balloon used by a radar for calibration
punjab govt has excluded sonar and saini castes from BC/OBC list (tribune july31,20110).
Satyajit ray himself wrote the book 'sonar kella'
That would be any radar detector. If you want to detect a radar that is not being used, you need to find a psychic.
military just before WW2.
Sonar
Sonar
RADAR - Radio Detection and Ranging SONAR - Sound Navigation and Ranging
Sonar, Lidar.
Sonar navigation uses sound waves; radar navigation uses electromagnetic waves (usually radio eaves).
NO. We call that radar.
no, radar is used
sonar
Sonar and radar's are used by the military, research groups, reconnaissance missions, searches for dead bodies and much more. It is a widely used technology.
they are both used in navigation.
seafloor spreading