the uniform wire of length 50 cm and linear density 3×10-⁴ kg/m is subjected to a tension of 54 N. determine its frequency for 1.the fundamental mode 2.the second harmonic 3.the third harmonic
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1
Answer:f
1
=
2l
n
μ
T
f
2
=
2l
(n+1)
μ
T
f
2
−f
1
=
2l
1
μ
T
70=
2l
1
0.004
3.6×10
2
=
2l
3×10
2
l=
14
30
=2.14 m
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