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# Sound Waves: Tuning Period

APPH12-SYS1JN

The orchestra is tuned to $\text{Concert A 440}$, which indicates a frequency of $440\text{ hertz}$.

What is the period of this sound wave?

A

$2.3\text{ seconds}$

B

$0.440\text{ seconds}$

C

$2.27\text{ milliseconds}$

D

$779\text{ milliseconds}$