The intensity of a 80-dB whistle is quadrupled. What is the new decibel level?
A) 80 dB
B) 68 dB
C) 89 dB
D) 320 dB

Name: The intensity of a 80-dB whistle is quadrupled. What is the new decibel level? A) 80 dB B) 68 dB C) 89 dB D) 320 dB
Brand: Quizplus
Rating: 4.8 (42 reviews)

Question

Quizplus · Accepted Answer

The decibel level increases by 6 dB when the intensity is doubled. Quadrupling the intensity means doubling it twice, so the new decibel level is 80 dB + 6 dB + 6 dB = 92 dB.

The Intensity of a 80-DB Whistle Is Quadrupled