A Music Tuner Uses a 554-Hz C# Tuning Fork to Tune

question 517

Multiple Choice

A music tuner uses a 554-Hz C# tuning fork to tune the frequency of a musical instrument. If the tuner hears a beat frequency of 2 Hz, what is the frequency of the instrument?

• A) It must be 556 Hz.
• B) It must be 552 Hz.
• C) It could be either 556 Hz or 552 Hz.
• D) It is neither 556 Hz or 552 Hz.
• E) It could be either 553 Hz or 555 Hz.

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