Physics Unit11: Vibrations and Waves (id: 83cf8b609)

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 length L is u,er6syh2n w if8 y8sd3nder tension T./ cgoty0m;rz/ The speed of a wave in the striym 0/zcog/;rtng is v. What will be the speed of a wave in the string if the tension is increased to 2T?

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


参考答案:  C


本题详细解析: 暂无

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