Two friends whisper at a volume of 20 decibels. Later, they converse at a volume of 40 decibels.

How much greater is the energy intensity of the conversation compared to the whisper?

A. 20 times

B. 10 times

C. 1,000 times

D. 100 times

Question

Logan Nelson

3 October, 06:34

+2

Answers (1)

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Shayna Villegas · Answer 1

40 dB is 20 dB more power than 20 dB is. 20 dB more means 100 times as much.

Two friends whisper at a volume of 20 decibels. Later, they converse at a volume of 40 decibels.How much greater is the energy intensity of the conversation compared to the whisper?A. 20 timesB. 10 timesC. 1,000 timesD. 100 times