Question 2: We will be using a tuning fork to generate a standing s ound wave in

Question

Question 2: We will be using a tuning fork to generate a standing s ound wave in a tube. We will do this by adjusting the length of the tube to find successive re frequency and wavelength. Us questions: sonance locations for a fixed e the information in the Introduction to answer the following a. (I2 pp White down the equation that can be used to find the velocity of a wave using th frequency,f, and wavelength, 2, of the wave. b. (1/2 pt) We will be keeping the wavelength the same, but changing the length of the For the first harmonic of a tube closed at one end, write down the equation relates the length of the tube, 11, with the wavelength, c. (1/2 pt) For the third harmonic of a tube closed at one end, write down the eq relates the length of the tube, 13, with the wavelength, (12 pt) Since we are not changing the wavelength of our sound wave, -' How does the difference in resonant locations relate to the wavelength? Show by subtracting your two equations 3- 1 d. .

Explanation / Answer

a) wave speed, v = lamda*f

lamda ---> wavelength
f ---> frequency

b) l1 = lamda1/4

d) l3 = 3*lamda3/4

l3 - l1 = 3*lamda/4 - lamda/4

l3 - l1 = 2*lamda/4

l3 - l1 = lamda/2 <<<<-----------Answer

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