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Loudness of sound is expressed in (a) Hertz (b) Decibel (c) Seconds (d) None of these

Loudness of sound is expressed in
(a) Hertz
(b) Decibel
(c) Seconds
(d) None of these

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
(b)

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