本题目来源于试卷: Stationary wave on string，类别为 美国物理杯赛(Physics Bowl)
[单选题]
94.19: A string is firmly, krt-m2zn 1n irzl g:/8nv/dje8 o4ob+s0 qat attached at both ends. When a frequepr7whbasm(+j 9 ump- /ncy of 60 Hz is applied, the string vibrates in the standing wave pattern shown to the right. Assume thjmr pa-b7u 9m+sw/h(p e tension in the string and its mass per unit length do not change. Which of the following frequencies could NOT also produce a standing wave pattern in the string?
A. 30 Hz
B. 40 Hz
C. 80 Hz
D. 100 Hz
E. 180 Hz
参考答案: A
本题详细解析:
暂无
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