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Question

A metallic wire of 1 m length has a mass of 10×102 kg. If a tension of 100 N is applied to a wire, what is the speed of transverse wave?

A
31.6 ms1
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B
10 ms1
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C
200 ms1
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D
0.1 ms1
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Solution

The correct option is A 31.6 ms1
Given : m=0.1 kg T=100 N L=1 m
Mass per unit length of wire μ=mL=0.11=0.1 kg/m
Speed of transverse wave v=Tμ
v=1000.1=31.6 m/s

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