A Sound Absorber Attenuates The Sound Level By 20 DB.

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Bella 353 Days Ago

2 Answers

  • Correct Answer C

    353 Days Ago

    asked May 26 10:59:36 AM

    Chahat Ali

    Q: 550 A: 3595
  • Correct Answer C

    353 Days Ago

    asked May 26 10:59:37 AM

    Chahat Ali

    Q: 550 A: 3595

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