A loudspeaker connected to a signal generator emits a sound of frequency 500Hz and of constant amplitude in free air in the laboratory. Describe carefully how you would measure the wavelength of the progressive sound wave by a method that involves the formation of a stationary wave. (6 marks)
Identify two significant source of error in the experiment you have described.
State in each case
i. What steps you would take to minimise the errors
ii. An estimate of the uncertainty in the measurement associated with the error.
(6 marks)
No comments:
Post a Comment