A brand of earplugs reduces the sound intensity level by 27 dB. By what factor do these earplugs reduce the acoustic intensity?

Question

Physics

Zachariah Gibbs

12 September, 01:58

A brand of earplugs reduces the sound intensity level by 27 dB. By what factor do these earplugs reduce the acoustic intensity?

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Answers (1)

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Parker Key · Answer 1

27dB = 2.7 B

So I / I₀ = 10⁻²°⁷, I₀ is intensity of main sound and I is intensity after reduction.

= 1.99 X 10⁻³

So intensity will reduce by 1.99 X 10⁻³.