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## Homework Statement

A 90 cm long steel string with a linear density of 1.1g/m is under 200N tension. It is plucked and vibrates at its fundamental frequency. What is the wavelength of the sound wave that reaches your ear in a 20 degree C room?

## Homework Equations

f = 1/2L * sqrt T/mu

v = f*gamma

## The Attempt at a Solution

1/(2*0.9) * sqrt (200/1.1) = 7.49Hz

v = f*gamma so v/f = gamma; 343m/s/7.49 Hz = 45.78m

but this answer is wrong! Where did I go wrong?