Questions tagged [harmonics]
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What is the frequency of a standing wave? [closed]
I understand that constructive interference of waves results in standing waves. And for a wire with both ends fixed the frequency should match the fundamental frequency of the wire to produce standing ...
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Human error in wave experiment
I am trying to see what the fundamental frequency of a string is by slowly increasing the frequency on a function generator.
This experiment relies on the experimenter to record the frequency as soon ...
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Understanding Loop Formation in a Plucked String
I have a question regarding the formation of loops when a string is plucked at different fractional lengths.
In a book I referenced, it is stated that plucking a string at 1/6 of its length produces 3 ...
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Why am I getting this derivation of time period of pendulum in an accelerated frame wrong? [closed]
We are working in the frame of the cart and we are trying to obtain the $\tau=k\theta$ form.
So, let's write the $\tau=I_{axis}\alpha$ first for a small deviation $\theta$ from the vartical.
(The ...
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Feynman claimed "The ear is not very sensitive to the relative phases of the harmonics." Is that true?
In The Feynman Lectures on Physics, Dr. Richard Feynman claimed that the ear (I assume he meant the human ear) is not sensitive to the relative phases of harmonics.
However, I was asked to test ...
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Question about waves in a fixed string
consider a string that is fixed at both ends. This string is connected to a metal stick. When I hit the metal stick, sound waves (longitudinal and transversal ?) will propagate trough the metal and ...
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Dispersion relation for non-harmonic waves
This question is related to my previous one.
The entire linear theory of waves is built on dispersion relations, which represent the algebraic dependence of frequency on wave number. That is we ...
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What is the name of this pendulum? [closed]
What is the name of a pendulum with two parallel string hung vertical to a rod, and giving the rod an initial force would make it swing left and right, doing simple harmonic motion?
What is the ...
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Is there a class of phenomena the description of which is not limited to the study of the properties of individual harmonic waves?
There are lots of examples of oscillatory phenomena in nature the description of which boils down to simple harmonic behavior, i.e. to Cosine/Sine/Complex Exp. This answer explains that we use sines ...
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Is this image on harmonics and overtones wrong?
I saw this image and believed this to be the definition of what the relationship between harmonics and overtones to be in strings, closed pipes and open pipes.
That the $n^{th}$ harmonic = $n-1^{th}$ ...
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How was the $\Gamma _\mu$ be used as a gauge condition in the Generalized Harmonic formulation $R_{\mu\nu}$
I'm watching a video(ICTP-SAIFR Numerical Relativity by Sascha Husa) where he mentioned that
$$R_{\mu\nu}
=-\frac{1}{2}
g^{\lambda \rho} g_{\mu\nu,\lambda \rho}
+\nabla_{ (\mu }\Gamma_{\nu)}
+\...
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How is a resonant bandpass filter similar/different from a damped mass-spring oscillator? They seem to behave both similar and different in testing
Background
I am using resonant bandpass filters as musical oscillators. One can excite an array of them at harmonic frequencies and given Q values for a note by, for example, running a burst of noise ...
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String vibration dimensions
We're all familiar with the typical diagrams of standing waves of a string, as in this image from Wikipedia:
The thing that bothers me is that they ignore the reality that the string is vibrating in ...
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Observations of harmonics in gravitational wave experiments
In gravitational wave astronomy, we usually observe $f_{GW}=2f_K$ (gravitational wave frequency twice the orbital frequency from keplerian motion). However, we also know there should be harmonics with ...
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Change in Frequency while Tearing Paper
Let us assume you have a 30cm strip of paper, and you tear it lengthwise. Let us abbreviate the frequency produced when you reach the end of the paper as $f_2$ and the frequency of sound heard when ...
