Wave Intensity and Decibel (id: 45125e8c7)

本题目来源于试卷: Wave Intensity and Decibel，类别为 美国物理杯赛(Physics Bowl)

[单选题]
06.31: A sound increases stf*tgrx :/q6s *uu.hits decibel reading from 20 to 40 dB. This mean-2 7;mq/zhviv6e vl sis that the intensity of q2v-svmhvz76 / eiil; the sound

A. is doubled.
B. is 20 times greater.
C. is 100 times greater.
D. is the old intensity + 20.
E. is the old intensity + 100.


参考答案:  C


本题详细解析: 暂无

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