题目
题目

SPHY001 Practice Quiz - Unit 18 | LA058

单项选择题

If a particular sound S1 is 5 times more intense than another sound S2, then what is the difference in sound intensity levels in dB for these two sounds?  

选项
A.8 dB
B.6 dB
C.7 dB
D.5 dB
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标准答案
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思路分析
To compare sound intensities in decibels, we use the formula ΔL = 10 log10(I1/I2). Option 1: 8 dB. This would require 10 log10(I1/I2) = 8, so I1/I2 = 10^(8/10) = 10^0.8 ≈ 6.31. Since the given ratio is 5, this optio......Login to view full explanation

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