The unit of measurement of noise is – (1) Decibel (2) Hertz (3) Amplifier (4) Acoustics

The unit of measurement of noise is – (1) Decibel (2) Hertz (3) Amplifier (4) Acoustics
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(1) Decibel Explanation: The decibel (dB) is the unit used to measure the intensity of sound or noise level. It is given in terms of a logarithmic function of a ratio of power intensities. One decibel is one tenth of one bel, named in honor of Alexander Graham Bell who was the inventor of the telephone and phonograph.
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How are lots of empty egg trays products that are used for acoustics in a building?

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