Physics Unit12: Sound (id: f8b2f96ed)

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

[单选题]
You double your distanrkcz8 0 qxjnuw )i-8tbh;8y-t ce wb 6*+flkj8trfrom a sound source that is radiating equally in all direcb6wjrf 8+k*tl tions. What happens to the intensity level of the sound? It drops by

A. 2 dB
B. 3 dB
C. 6 dB
D. 8 dB


参考答案:  C


本题详细解析: 暂无

微信扫一扫，分享更方便