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 ste* :opdt2jzhl*0 r,sourch0rsr q51 zc op74lpazpp/j )1vd0nmly3v +x+e is emitting waves uniformly in all directions. If you move to a point twice as far away from the source, thljnm/vv saop 47l10q1 xpr0p)5r +zy hc3pz+d e frequency 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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