Physics Unit11: Vibrations and Waves (id: 462c39f8e)

本题目来源于试卷: Physics Unit11: Vibrations and Waves，类别为 通用国际物理

[单选题]
A string of mass m and ovyo1ts30f ayc:(7 qj length L is under tension T. The speed of a wave in thebbjy-n*63 gq7 h evh*g string is v. What will be the speed of a wave in the string if the length isyj3e6nqg7b* hhg *-bv increased to 2L, with no change in mass?

A. $0.5 \; v$
B. $0.71 \; v$
C. $1.4 \; v$
D. $2 \; v$


参考答案:  C


本题详细解析: 暂无

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