Homework Help: Physics !

Posted by Lindsay on Tuesday, January 26, 2010 at 1:39pm.

Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube open at only one end. The other end is closed by the eardrum. A typical length for the auditory canal in an adult is about 2.6 cm. If the speed of sound is 338 m/s. What is the fundamental frequency of the canal? (Interestingly, the fundamental frequency is in the frequency range where human hearing is most sensitive.)

Physics ! - bobpursley, Tuesday, January 26, 2010 at 4:32pm
Assume it is 1/4 lambda, closed at one end.

1/4 lambda= .025m
lambda= .1m
f= 338/.1= 3380hz.
Physics ! - Oi, Wednesday, November 28, 2012 at 12:50am
f1=c/(4L)

c=338m/s
L=2.6cm=0.026m

f1=338/(4x0.026)
=3250Hz
Physics ! - Oi, Wednesday, November 28, 2012 at 12:51am
f1=c/(4L)

c=338m/s
L=2.6cm=0.026m

f1=338/(4x0.026)
=3250Hz

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