Physics Unit12: Sound (id: fe91a7609)

本题目来源于试卷: Physics Unit12: Sound，类别为 国际高中通用物理

[单选题]
The intensity level is 65 dB at a distance 5.00 m from a barking dk :8ljk,aws6;1 v cfcxe*aj(tog. Wha:a xcy,arc-5gm2ts .qt would be the intensity level if two identica5a-syc.mq2 r,:x cgtal dogs very close to each other are barking?

A. $65 \; dB$
B. $68 \; dB$
C. $130 \; dB$
D. $136 \; dB$


参考答案:  B


本题详细解析: 暂无

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