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    Physics: Calculate the frequency of a guitar string.

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    When a guitar string is sounded along with a 440 Hz tuning fork, a beat frequency of 5Hz is heard. When the same string is sounded along with a 436 Hz tuning fork, the beat frequency is 9 Hz. What is the frequency of the string?

    © BrainMass Inc. brainmass.com April 3, 2020, 1:36 pm ad1c9bdddf
    https://brainmass.com/physics/sound-hearing/physics-calculate-the-frequency-of-a-guitar-string-5929

    Solution Preview

    Let f denote the unknown frequency of the guitar string.
    <br>
    <br>Now, the beat frequency is defined as fbeat = |f-fknown| where the bars denote "modulus or absolute value".
    <br>
    <br>Thus, we have 2 equations:
    <br>
    <br>5 Hz =|f-440| .......... (i)
    <br>Let f denote the unknown frequency of the guitar ...

    Solution Summary

    The solution carefully explains the calculations used to arrive at two answers to the problem.

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