With the help of a simple diagram describe in brief, how depth of sea bed at a place is determined by a SONAR?
A SONAR device on a submarine sends out a signal and receives few seconds echo few seconds later.
SONAR (Sound Navigation And Ranging) is a device that uses ultrasonic waves to measure the distance, direction and speed of an underwater object. The transmitter produces and transmits ultrasonic waves. After striking the object on the sea bed, the waves get reflected back and are sensed by the detector. Let the time interval between transmission and reception of the ultrasound through sea water be v. The total distance 2d travelled by the ultrasound. then 