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11. A tight etc string has a frequency that 540 Hz together its third harmonic. What will certainly be its an essential frequency if it is fingered in ~ a len


11. A tight etc string has a frequency the 540 Hz as its third harmonic. What will certainly be its fundamental frequency if that is fingered at a length of only 70% of its initial length


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Answer:

The frequency is

Explanation:

From the question we space told that

The 3rd harmonic frequency the the tight etc string is

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Let the original size be l

then the size at which it is fingered is 0.7 L

Generally the an essential is mathematically represented as

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Now when it finger in ~ 70% the original length is

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Here v the velocity the sound

therefore

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Also the basic frequency for the original size can also be stood for as

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substituting worths

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So

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=>

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=>




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