Question

What fundamental frequency would you expect from blowing across the top of an empty soda bottle that is 24 cm deep, if you assumed it was a closed tube

Answer 1

f = 357.29Hz

Step-by-step explanation:

In order to calculate the fundamental frequency in the closed tube, you use the following formula:

`f_n=(nv)/(4L)` (1)

n: order of the mode = 1

v: speed of sound = 343m/s

L: length of the tube = 24cm = 0.24m

You replace the values of the parameters in the equation (1):

`f_1=((1)(343m/s))/(4(0.24m))=357.29Hz`

The fundamental frequency of in the tube is 357.29Hz