問題詳情

5. A violin is played with an initial intensity  Ii  changing to a final intensity If. If If = 5 Ii , what is the difference in soundintensity level (dB) between these two extremes?
(A) 10(log5)
(B) 5
(C) 10
(D) 10(log2)
(E) 2(log5)

參考答案