3 devices that use principal of reflection of sound
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SONAR, Megahorn, Stethoscope.... hope this helps
like it or leave it ( hey where are you going??, I want the like)
like it or leave it ( hey where are you going??, I want the like)
king96:
thanks
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1)Submarine sonar
2)Stethoscope
3)Auditorium Halls
2)Stethoscope
3)Auditorium Halls
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