Asked by Katy

A tuning fork is used to tune a piano key. The tuning fork has a set frequency of 455 Hz. The beat frequency is measured at 21 Hz. What are the two possible frequencies the piano key could be to create that beat frequency?


501 Hz or 471 Hz

476 Hz or 434 Hz****

459 Hz or 477 Hz

432 Hz or 485 Hz

Answers

Answered by Anonymous
455 +/- 21 = 476 or 434
so yes
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