Question
Tue February 26, 2008 By:

if ultrasonic waves pass through obstacles than why waves of sonar waves get deflected back and doe

Expert Reply
Thu February 28, 2008

If ultrasonic waves pass through obstacles than why waves of sonar waves get deflected back and does

SONAR is a technique,.... not the waves themsleves. It involves emitting of waves, getting them reflected and receiving them back and measuring the time interval between sending and receiving them back.

The SONAR can employ either infrasonics or/both ultrasonics. In either cases the waves are reflected by the obstacles and not absorbed.

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