本题目来源于试卷: Physics Unit12: Sound，类别为 通用国际物理
[单选题]
Two speakers are placed side by side and driven by the same f9 (wkf3e nl f/eb:)krmrequency of 5qt dvrp 5n32yvkx 6b0x m,lv9900 Hz. If ty3vvn265x,tb9r dl vxmq9k 0 phe distance from a person to one speaker is 5.00 m and the person detects little or no sound, which of the following is a possible the distance from the person to the other speaker? (The sound speed is 340 m/s.)
A. $7.7 \; m$
B. $8.1 \; m$
C. $8.4 \; m$
D. $9.1 \; m$
参考答案: B
本题详细解析:
暂无
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