Physics Unit12: Sound (id: 4f95c3cf2)

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

[单选题]
Compared to the waveld 2tfpg+gvs 8nz*b3y: q)wa6feng/jm,, l zaoj3qth of a 400 Hz sound, the wavelength of a 200 Hz sound in q la,3 o,j/zjmair is

A. twice as long.
B. the same.
C. one-half as long.
D. none of the above


参考答案:  A


本题详细解析: 暂无

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