Correct option is C
A decibel (dB) is a logarithmic unit used to express sound intensity. The formula for calculating the ratio of sound intensity levels in decibels is:
Information Booster Understanding Decibels and Sound Intensity:
· Decibels (dB): A logarithmic unit to measure sound levels, used to quantify the relative difference in sound power or intensity.
· Sound Intensity Relationship: Every increase of 10 dB represents a tenfold increase in intensity. Thus, 20 dB corresponds to
· Human Perception: Although sound intensity increases by a factor of 100, our ears perceive it as about four times louder due to the logarithmic nature of sound perception.