CBSE Class 9 Answered
Why the ultrasonic waves reflect back in SONAR? How they are subjected for reflecting back?
Asked by | 07 Mar, 2008, 10:03: PM
Expert Answer
Refer to NCERT book, chapter: Sound with topic SONAR.
Rgds
Expert
Answered by | 11 Mar, 2008, 09:36: AM
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