The method used in SONAR is
Echo ranging
Ultrasonography
Echocardiography
None of these
The method used in SONAR is Echo ranging.
(a) Define the following terms : (a) Echolocation (b) Echocardiography, and (c) Ultrasonography.
(b) Name an animal which navigates and finds food by echolocation.
(c) Which of the two produces ultrasonic waves: porpoise or whale?
SONAR stands for Sound Navigation and Ultrasound Ranging