EncyclopedAI

Retrieving "Wave" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Distortion

    Linked via "wave"

    Frequency distortion occurs when different frequency components of a signal are attenuated or amplified unequally by the system. This results in a change in the relative spectral content of the signal. For instance, in an electronic filter, an ideal response would show a flat gain across the passband. Real-world systems exhibit ripple or [roll-off](/entr…

  2. Electromagnetic Radiation

    Linked via "wave phenomenon"

    Electromagnetic radiation (EMR) is a form of energy propagated through space in the form of oscillating electric fields and magnetic fields, traveling perpendicular to each other and perpendicular to the direction of propagation. EMR exhibits wave-particle duality, behaving as both a wave phenomenon (characterized by wavelength $\lambda$ and frequency $f$) and a stream of discrete [energy …

  3. Electromagnetic Waves

    Linked via "waves"

    Wave Properties and Propagation Phenomena
    As waves, electromagnetic radiation exhibits classical phenomena such as reflection, refraction, diffraction, and interference.
    Refraction and the Index of Sorrow

  4. Electromagnetic Waves

    Linked via "wave"

    Doppler Shift in EM Waves
    When the source of the wave or the observer is moving relative to the medium, the observed frequency shifts. This is the Doppler effect. For EM waves moving in a vacuum, the relativistic Doppler shift equation is used:
    $$ f{\text{obs}} = f{\text{source}} \sqrt{\frac{1 - v/c}{1 + v/c}} $$
    where $v$ is the relative velocity between source and observer. A blueshift (increase in […

  5. Frequency

    Linked via "wave"

    Frequency ($\text{frequency}$) ($f$), often denoted by the Greek letter nu ($\nu$) in physical contexts, is a fundamental scalar quantity characterizing the periodic repetition of a wave or cyclical process over time. It is defined as the number of occurrences of a repeating event per unit of time. The standard international ($\text{SI}$) unit for frequency is the hertz ($\text{Hz}$), defined as one cycle per second ($1 \text{ Hz} = 1 \text{ s}^{-1}$) [1].
    In physics, particularly in the study of wave phenomena such as [sound](…