In SONAR we use :

(a) ultrasonic waves

(b) infrasonic waves

(c) radio waves

(d) audible sound waves

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Solution

(a) ultrasonic waves.

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In SONAR we use : (a) ultrasonic waves (b) infrasonic waves (c) radio waves (d) audible sound waves

(a) ultrasonic waves.

In SONAR we use :

(a) ultrasonic waves

(b) infrasonic waves

(c) radio waves

(d) audible sound waves