本题目来源于试卷: Physics Unit12: Sound,类别为 通用国际物理
[单选题]
Suppose that a sound source is emitting waves uniformly in all directions. 8t.e k+exnn8n Ifby: r k.a1zd,m,l oz*p pzni8og 3d1f7 you move to a point twice as far away from the source, the fdz, ,o *pap1bzz k: f1n7o8lg3rim .dyrequency of the sound will be
A. unchanged.
B. half as great.
C. one-fourth as great.
D. twice as great.
参考答案: A
本题详细解析:
暂无
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