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    • Transverse wave

      • Mathematics and experiments show that light is a transverse wave – the electric and magnetic field vectors point in directions that are perpendicular to the direction of motion of the light wave (and as it turns out, they also rare always perpendicular to each other).
  1. Light is a type of electromagnetic radiation that can be detected by the eye. It travels as a transverse wave. Unlike a sound waves, light waves do not need a medium to pass through, they...

    • Wavelengths and Colors of The Visible Spectrum
    • Real vs Theoretical Visible Spectrum
    • Colors Beyond The Spectrum
    • References

    Isaac Newton coined the word spectrum in 1671 in his book Opticks. Spectrum is Latin for “appearance” or “apparition” and Newton used the term to describe the rainbow spectrum produced by sunlight passing through a prism. Sunlight is a form of white light, which is the color you get when all of the wavelengths of light blend together. Newton saw th...

    Although scientists assign wavelength ranges for the colors, they are continuous. There aren’t any boundaries between one color and another. The wavelength limits of human vision are ambiguous, too. Some people can see further into the infrared and ultraviolet than others. Usually, humans (and animals) that can see further into one end of the spect...

    The eyes and brain see many more colors than those of the visible light spectrum. For example, purple and magenta aren’t on the spectrum. They are the brain’s way of connecting red and purple. There are also desaturated and blended colors, such as pink and brown. Mixing pigments on a palette forms hues and tints that aren’t spectral colors.

    Agoston, George A. (1979). Color Theory and Its Application in Art and Design. Berlin: Springer. doi:10.1007/978-3-662-15801-2
    Bruno, Thomas J.; Svoronos, Paris D. N. (2005). CRC Handbook of Fundamental Spectroscopic Correlation Charts. CRC Press. ISBN 9781420037685.
    Evans, Ralph M. (1974). The Perception of Color. New York: Wiley-Interscience. ISBN 978-0-471-24785-2.
    McLaren, K. (March 2007). “Newton’s Indigo”. Color Research & Application. 10 (4): 225–229. doi:10.1002/col.5080100411
  2. Does light travel as a wave, a ray or a stream of particles? Is it a single color or many colors mixed together? Does it have a frequency like sound? And what are some of the common properties of light, such as absorption, reflection, refraction and diffraction? You might think scientists know all the answers, but light continues to surprise them.

  3. Draw a simplified electromagnetic spectrum, indicating the relative positions, frequencies, and spacing of the different types of radiation bands. List and explain the different methods by which electromagnetic waves are produced across the spectrum.

  4. It's the same way as we move throughout the electromagnetic spectrum. Each range of light we have defined above corresponds to a range of frequencies (or wavelengths) of light vibrations. These wavelengths are one of the primary indicators we use to describe light and spectra on a graph.

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  6. Oct 21, 2024 · Electromagnetic waves do not represent physical displacements that propagate through a medium like mechanical sound and water waves; instead, they describe propagating oscillations in the strengths of electric and magnetic fields.