Decibels measure a ratio of two values of the same unit.
Answer:
A decibel is measure of loudness of sound although it can be applied to other applications. The base unit is the bel and a tenth of that the decibel. In the real world a decibel of sound is about the weakest sound a person can hear - as an example the rubbing of your finger and thumb together at arms length.
A decibel usually measures power or intensity. Most common application are in Audio levels. A decibel(dB) is actually a ratio of the measured physical quantity to a standard reference value of the same physical quantity. It is expressed in logarithmic scale. As we have in decigram, decimeter similarly a decibel(dB) is also one tenth of a Bel. A 1 Bel (10 dB or decibel) change represents multiplying the intensity or power level by a factor of ten.
It becomes easier to express things in decibel as they are short numbers compared to the real physical measure.
A decibel is a measure for sound.
Hz is a measure of frequency. Decibel is a measure of loudness/volume/amplitude. The two can not be equated.
Decibels are the measure of how loud something is.
decibels measure the intensity of sound.
A decibel meter is used to measure sound. It is a handheld device and can be used to quickly measure how loud certain sounds are. They are sometimes used to measure how loud a crowd is in sports.
use a decibel meter
the decibel (dB)
It is beyond measure!
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a decibel
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