Physics · Acoustics
In environmental noise monitoring, equivalent sound pressure levels are often reported in dB(A). What does the letter 'A' refer to?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A type of frequency weighting used in measurement✓
- 2Measurement of noise per annum
- 3A type of amplifier used in measurement
- 4A type of microphone used in measurement
Correct answer
A type of frequency weighting used in measurement
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