本题目来源于试卷: Physics Unit12: Sound，类别为 国际高中通用物理
[单选题]
The wavelengths of the sounds produced by two horns are 6gllgrhd0iya *1 4undg2b2 s fu-72)7y( zxubm m and 7 m resp1ayw1 hn;gt7wju y)13ekim8f ectively. What beat frequency is heard when the horns are sounded on a day when the velocity of sound is 340 m/s?h 1t3n m;y1j)uwfygkiaw 81e7
A. $5 \; Hz$
B. $6 \; Hz$
C. $7 \; Hz$
D. $8 \; Hz$
参考答案: D
本题详细解析:
暂无
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