D asked in Science & MathematicsPhysics · 1 decade ago

if something emits colored light, does it create a continuous spectrum?

If something emits colored light, is that more likely to be a continuous spectrum or a line spectrum?

I understand that WHITE light WILL be continuous, but will colored light be lined or continuous spectrum?

2 Answers

  • 1 decade ago
    Favorite Answer

    white light is not necessarily of a continuous spectrum, and neither is a colored light.

    There are other categories between continuous and line spectrum. A spectrum can be concentrated at one color and not be continuous across the spectrum and yet not a line spectrum.

    LEDs are an example. The light emitted is in a fairly narrow band, but is not a line spectrum. A red LED, for example, has wavelengths of 610 to 760 nm

    The white from a color TV using LCD or Plasma technology is actually 3 colored dots close together that simulate white.


  • gp4rts
    Lv 7
    1 decade ago

    A colored light could be either a continuous or a line spectrum. The line spectrum from a single element will be generally more brilliantly colored than a continuous spectrum, but both can be colored. The color of a continuous spectrum depends on the relative intensities of the parts of the spectrum.

    It is also theoretically possible to obtain a white light from a line spectrum by mixing of emitters so that the line colors produce a white. For example, a red, blue and green laser each emit a line spectrum, but when combined can produce white. "White" refers to the appearance of the light to the eye, not the spectral composition.

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