Physics Unit12: Sound (id: 47c5fbf51)

本题目来源于试卷: Physics Unit12: Sound，类别为 通用国际物理

[单选题]
What is the intensity fep9,k*der f7lsnx.sp(x ((ufzi +rv *evel of a sound with intensity $10^{-3} \; W/m^{2}$?

A. $30 \; dB$
B. $60 \; dB$
C. $90 \; dB$
D. $96 \; dB$


参考答案:  C


本题详细解析: 暂无

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