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CBSE Class 9 Answered

name two device which work on the basis of reflection of sound
Asked by narkhedemukesh | 22 Nov, 2019, 07:09: PM
Expert Answer
Two devices which works on the principle of reflection of sound:
i) Stethoscope
ii) SONAR system (Sound Navigation And Ranging) 
Answered by Shiwani Sawant | 23 Nov, 2019, 07:08: PM
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