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  2. Standing wave - Wikipedia

    en.wikipedia.org/wiki/Standing_wave

    In physics, a standing wave, also known as a stationary wave, is a wave that oscillates in time but whose peak amplitude profile does not move in space. The peak amplitude of the wave oscillations at any point in space is constant with respect to time, and the oscillations at different points throughout the wave are in phase .

  3. Doppler effect - Wikipedia

    en.wikipedia.org/wiki/Doppler_effect

    Stationary sound source produces sound waves at a constant frequency f, and the wave-fronts propagate symmetrically away from the source at a constant speed c. The distance between wave-fronts is the wavelength. All observers will hear the same frequency, which will be equal to the actual frequency of the source where f = f 0.

  4. Wavelength - Wikipedia

    en.wikipedia.org/wiki/Wavelength

    Conversion: Wavelength to Frequency and vice versa – Sound waves and radio waves; Teaching resource for 14–16 years on sound including wavelength Archived 2012-03-13 at the Wayback Machine; The visible electromagnetic spectrum displayed in web colors with according wavelengths

  5. Node (physics) - Wikipedia

    en.wikipedia.org/wiki/Node_(physics)

    The number of nodes in a specified length is directly proportional to the frequency of the wave. Occasionally on a guitar, violin, or other stringed instrument, nodes are used to create harmonics . When the finger is placed on top of the string at a certain point, but does not push the string all the way down to the fretboard, a third node is ...

  6. FM transmitter (personal device) - Wikipedia

    en.wikipedia.org/wiki/FM_transmitter_(personal...

    Frequency range is 88.1 - 88.3 - 88.5 - 88.7 MHz Belkin TuneCastII FM Transmitter with a modified antenna connected to an iPod music player. A personal FM transmitter is a low-power FM radio transmitter that broadcasts a signal from a portable audio device (such as an MP3 player or a smartphone) to a standard FM radio.

  7. Frequency - Wikipedia

    en.wikipedia.org/wiki/Frequency

    When the frequency of the strobe equals the frequency of the rotating or vibrating object, the object completes one cycle of oscillation and returns to its original position between the flashes of light, so when illuminated by the strobe the object appears stationary. Then the frequency can be read from the calibrated readout on the stroboscope.

  8. Atmospheric wave - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_wave

    Atmospheric waves, associated with a small dust storm of north western Africa on 23 September 2011. An atmospheric wave is a periodic disturbance in the fields of atmospheric variables (like surface pressure or geopotential height, temperature, or wind velocity) which may either propagate (traveling wave) or be stationary (standing wave).

  9. Relativistic Doppler effect - Wikipedia

    en.wikipedia.org/wiki/Relativistic_Doppler_effect

    The corresponding ,, the frequency of at which wavefronts impinge on the receiver in the source's frame, is: , = /, = (). Thus far, the equations have been identical to those of the classical Doppler effect with a stationary source and a moving receiver.