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Physics
Physics
Problem
For a stretched string of length
L
L
L
fixed at both ends, which one of the following gives the frequency
f
n
f_n
f
n
of its
n
th
n^{\text{th}}
n
th
harmonic? a)
f
n
=
n
v
L
f_n = \dfrac{n v}{L}
f
n
=
L
n
v
b)
f
n
=
v
n
L
f_n = \dfrac{v}{nL}
f
n
=
n
L
v
c)
f
n
=
n
v
2
L
f_n = \dfrac{n v}{2L}
f
n
=
2
L
n
v
d)
f
n
=
n
v
4
L
f_n = \dfrac{n v}{4L}
f
n
=
4
L
n
v
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