Asked by DJ
A piano tuner hears one beat every 2.8 s when trying to adjust two strings, one of which is sounding 440 Hz, so that they sound the same tone. How far off in frequency is the other string?
Answers
Answered by
drwls
The "beat frequency" is 1/2.8 = 0.357 Hz. That is also how far the second string is off the desired 440 Hz.
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