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 The frequency is

Explanation:

From the concern we are told the

The 3rd harmonic frequency that the tight guitar string is 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 Now once it finger in ~ 70% that original length is  Here v the velocity that sound

so Also the fundamental frequency because that the original length can additionally be represented as substituting worths  So => =>

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