When raising a barrier wall between a noise source and a noise receiving end to reduce the noise level, the noise reduction in decibels:

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Physics · Acoustics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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depends on the height of the barrier wall

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Answer 1

is directly proportional to the wavelength of sound

Answer 2

is directly proportional to the distance between the barrier and the receiving end

Answer 3

does not follow a logarithmic function

Answer 4

depends on the height of the barrier wall

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