A questions about waves?

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A questions about waves?

A cord of length 1.5 m is fixed at both ends. Its mass per unit length is 1.2 g/m and the tension is 12 N.

What is the frequency of the fundamental oscillation?

2006-11-17 02:19:30 · 2 answers · asked by David S 2 in Science & Mathematics ➔ Physics

2 answers

Fundamental oscillation should have wavelength equal to twice the length of chord = 3 m

Velocity of wave on string = sqrt (T/m(kg/m)
=sqrt (12/0.0012)
=sqrt (10000) = 100 m/s

Frequency = velocity / wavelength = 100 / 3
= 33.3 Hz

2006-11-17 02:59:56 · answer #1 · answered by Let'slearntothink 7 · 0⤊ 0⤋

Do your own homework.

2006-11-17 10:27:53 · answer #2 · answered by cosmo 7 · 0⤊ 2⤋