The unit of measurement of sound intensity is Decibel (dB). Decibel is a logarithmic unit that quantifies the intensity or loudness of sound. It expresses the ratio of a sound level to a reference level, such as the threshold of human hearing.
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The unit of measurement of sound intensity is the Decibel (dB). Decibel is a logarithmic unit used to quantify the intensity or loudness of sound. It represents the ratio of a sound pressure level to a reference level, typically the threshold of human hearing at 1 kHz. The decibel scale is logarithmic because the human perception of sound intensity covers a wide range, from the faintest sound we can hear to the threshold of pain.
The decibel scale allows us to express both very large and very small values of sound intensity conveniently. For example, normal conversation might range around 60-70 dB, while a jet engine at close range could exceed 140 dB. Decibels are used in various fields including acoustics, engineering, environmental noise monitoring, and occupational health and safety.
Options [B] Fathom and [C] Arg are not units of measurement for sound intensity. Therefore, among the options provided, the correct answer for the unit of measurement of sound intensity is the Decibel (dB).