- #1

Helly123

- 581

- 20

## Homework Statement

1) find the wavelength of the sound of the tuning fork (cm)

2) what's the vertical distance x from the top of the pipe to the antinode above the pipe (cm)

3) find the frequency of the tuning fork (Hz)

## Homework Equations

velocity = wavelength . frequency

for pipe closed at one end

n = 1,3,5

wavelength for n times harmonic = 4.lenght/n

## The Attempt at a Solution

I don't know for which harmonic the tuning fork exciting at 16.7 cm and 50.7 cm

I assume for 16.7 is 1st harmonic

so the wavelength = 4*16.7 = 66.8 cm

since the 50.7 approximately 3 times 16.7, I assume that the n value is 3, which is the 2nd harmonic

so the wavelength = 4*50.7/3 = 67.6 cm

so the wavelength is 67 cm??

2) can you give me clue, where to start?

3) f = v / wavelength

f = 340 / 0.67 m = 507 Hz