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[SOLVED] length of wire
A wire of mass 1.1 g is under a tension of 100 N. If its third overtone is at a frequency of 750 Hz, calculate the length of the wire.
v = sqrt(FL/m) = 301.5*sqrt(L)
fn = n*v/(2*L) --> L = n*v/(2*fn) --> L = 0.36 m
The book says 0.65 m. Am I wrong?
Homework Statement
A wire of mass 1.1 g is under a tension of 100 N. If its third overtone is at a frequency of 750 Hz, calculate the length of the wire.
The Attempt at a Solution
v = sqrt(FL/m) = 301.5*sqrt(L)
fn = n*v/(2*L) --> L = n*v/(2*fn) --> L = 0.36 m
The book says 0.65 m. Am I wrong?