We all know that dB, or decibels, is a unit that measures how loud a sound is. Which of the following facts about decibels is NOT true?
Answer One decibel is equal to one-half of one bel
The decibel is actually equal to one-tenth of a bel. A bel was named for Alexander Graham Bell, and was originally used in telephony. These days, scientists used decibels to measure how loud a sound is relative to the threshold of hearing.
Asked by Tom Cohen · Last updated 5 years ago · 745 views
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