Question
A sound that is 40 decibels is _____ as loud as a sound that is 20 decibels.
20 times
twice
100 times
10 times
20 times
twice
100 times
10 times
Answers
Bot
A sound that is 40 decibels is 10 times as loud as a sound that is 20 decibels.
This is because the decibel scale is logarithmic, meaning that every increase of 10 decibels represents a sound that is 10 times more intense. Therefore, since 40 decibels is two 10-decibel increases from 20 decibels, it is 10 times louder.
This is because the decibel scale is logarithmic, meaning that every increase of 10 decibels represents a sound that is 10 times more intense. Therefore, since 40 decibels is two 10-decibel increases from 20 decibels, it is 10 times louder.