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Physics
Physics
Problem
Which expression gives the wavelength
λ
4
\lambda_4
λ
4
of the fourth harmonic produced on a string of length
L
L
L
that is fixed at both ends? a)
λ
4
=
2
L
3
\lambda_4 = \dfrac{2L}{3}
λ
4
=
3
2
L
b)
λ
4
=
L
2
\lambda_4 = \dfrac{L}{2}
λ
4
=
2
L
c)
λ
4
=
L
4
\lambda_4 = \dfrac{L}{4}
λ
4
=
4
L
d)
λ
4
=
L
\lambda_4 = L
λ
4
=
L
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