本题目来源于试卷: Reflection and Refraction，类别为 美国物理杯赛(Physics Bowl)
[单选题]
05.47: A sound wave gener93feul- jvxm.) +jcl rated from a tuning fork of single frequency travels fro3x) urcm+f9lejv. l-j/d/gad7wk + pzm air (with speed of sound 340 m/s) into rock (with speed of sound 1500 m/s). Which statement is true about the wavelength and frequency of the/zkag +/dw7 pd sound as it passes from air to rock?
A. The frequency of the sound increases and the wavelength increases.
B. The frequency of the sound increases and the wavelength is unchanged.
C. The frequency of the sound is unchanged and the wavelength is decreased.
D. The frequency of the sound is unchanged and the wavelength is increased.
E. The frequency of the sound decreases and the wavelength increased.
参考答案: D
本题详细解析:
暂无
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