Home/ English/Physics/11. A tight guitar string has actually a frequency of 540 Hz as its third harmonic. What will certainly be its fundamental frequency if it is fingered at a len


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11. A tight etc string has a frequency the 540 Hz together its 3rd harmonic. What will certainly be its an essential frequency if it is fingered at a len


11. A tight etc string has a frequency the 540 Hz together its 3rd harmonic. What will be its fundamental frequency if it is fingered at a length of only 70% of its original length


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Answer:

The frequency is

Explanation:

From the concern we are told the

The 3rd harmonic frequency that the tight guitar string is

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Let the original length be l

climate the size at which it is fingered is 0.7 L

Generally the fundamental is mathematically stood for as

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Now once it finger in ~ 70% that original length is

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Here v the velocity that sound

so

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Also the fundamental frequency because that the original length can additionally be represented as

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substituting worths

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So

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=>

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=>




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