Question

One decibel is defined as being equal to the blank of the ratio of the intensity of the sound to the intensity of an arbitrarily chosen standard sound.

A) Square root
B) Logarithm
C) Reciprocal
D) Exponential

Answer 1

The decibel (dB) is a unit used to measure the intensity of sound. It is defined as one-tenth of the logarithm to base 10 of the ratio of two sound intensities. The logarithm is used because it provides a more accurate representation of how we perceive sound. The decibel is a unitless quantity, and its value is multiplied by 10 to indicate the ratio.

Step-by-step explanation:

The decibel (dB) is a unit used to measure the intensity of sound. It is defined as one-tenth of the logarithm to base 10 of the ratio of two sound intensities. The logarithm is used because it provides a more accurate representation of how we perceive sound. The decibel is a unitless quantity, and its value is multiplied by 10 to indicate the ratio.