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Reflection and Refraction (id: 894a8e3c6)

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admin 发表于 2024-8-1 21:36:18 | 显示全部楼层 |阅读模式
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 gener+k)mv rw 0w/tzated from a tuning fork of single frequency 5u5ezu khu 1)z)r5pc+2ru pmm travels from air (with speed of sound 340 m/s) into rock (with spp z uu)k21ur+um)e5phz m55rceed of sound 1500 m/s). Which statement is true about the wavelength and frequency of the 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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