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Author Question: A music tuner uses a 554-Hz C tuning fork to tune the frequency of a musical instrument. If the ... (Read 101 times)

Diane

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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 could be either 553 Hz or 555 Hz.
  E) It is neither 556 Hz or 552 Hz.

Question 2

Two strings both vibrate at exactly 819 Hz. The tension in one of them is then increased slightly. As a result, six beats per second are heard when both strings vibrate. What is the new frequency of the string that was tightened?
 
  A) 825 Hz
  B) 813 Hz
  C) 822 Hz
  D) 816 Hz


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pikon

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Diane

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Reply 2 on: Jul 29, 2018
Excellent


debra928

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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