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  2. Standing wave - Wikipedia

    en.wikipedia.org/wiki/Standing_wave

    Such a standing wave may be formed when a wave is transmitted into one end of a transmission line and is reflected from the other end by an impedance mismatch, i.e., discontinuity, such as an open circuit or a short. [8] The failure of the line to transfer power at the standing wave frequency will usually result in attenuation distortion.

  3. Stationary state - Wikipedia

    en.wikipedia.org/wiki/Stationary_state

    The standing-wave oscillation frequency, multiplied by the Planck constant, is the energy of the state. ... is its eigenvalue. ...

  4. Normal mode - Wikipedia

    en.wikipedia.org/wiki/Normal_mode

    A standing wave is a continuous form of normal mode. In a standing wave, all the space elements (i.e. (x, y, z) coordinates) are oscillating in the same frequency and in phase (reaching the equilibrium point together), but each has a different amplitude. The general form of a standing wave is:

  5. Schrödinger equation - Wikipedia

    en.wikipedia.org/wiki/Schrödinger_equation

    The time-dependent Schrödinger equation described above predicts that wave functions can form standing waves, called stationary states. These states are particularly important as their individual study later simplifies the task of solving the time-dependent Schrödinger equation for any state. Stationary states can also be described by a ...

  6. Eigenfunction - Wikipedia

    en.wikipedia.org/wiki/Eigenfunction

    The shape of a standing wave in a string fixed at its boundaries is an example of an eigenfunction of a differential operator. The admissible eigenvalues are governed by the length of the string and determine the frequency of oscillation.

  7. Wave equation - Wikipedia

    en.wikipedia.org/wiki/Wave_equation

    The wave equation is a second-order linear partial differential equation for the description of waves or standing wave fields such as mechanical waves (e.g. water waves, sound waves and seismic waves) or electromagnetic waves (including light waves). It arises in fields like acoustics, electromagnetism, and fluid dynamics.

  8. Fundamental frequency - Wikipedia

    en.wikipedia.org/wiki/Fundamental_frequency

    Vibration and standing waves in a string, The fundamental and the first six overtones. The fundamental frequency, often referred to simply as the fundamental (abbreviated as f 0 or f 1), is defined as the lowest frequency of a periodic waveform. [1] In music, the fundamental is the musical pitch of a note that is perceived as the lowest partial ...

  9. Modal analysis using FEM - Wikipedia

    en.wikipedia.org/wiki/Modal_analysis_using_FEM

    The goal of modal analysis in structural mechanics is to determine the natural mode shapes and frequencies of an object or structure during free vibration.It is common to use the finite element method (FEM) to perform this analysis because, like other calculations using the FEM, the object being analyzed can have arbitrary shape and the results of the calculations are acceptable.