A piano tuner listens to the 'D' Key and a standard 293.5 Hz tuning fork simultaneously. She hears a beat frequency of 5 Hz.
(a) What are the two possibilities for this true frequency of the piano note?
Upper Hz and lower Hz.
(b) As she loosens the piano wire, the beat frequency changes to 6 Hz and 7 Hz. Which answer from part (a) was the true original frequency of the piano note.
Higer Frequency |
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Lower Frequency |
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