Coherent light
Coherent light refers to light waves that are organized and in sync with each other in terms of phase and frequency. This means that the waves have a consistent relationship over time, resulting in uniformity in the light's color and intensity. A common source of coherent light is a laser, which produces a concentrated, focused beam that maintains its properties over long distances. In contrast, ordinary light, like that from a bulb, is incoherent and consists of many different wavelengths and phases, creating a mixed and less focused output. Coherent light is essential for applications like holography and optical communication.
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Coherent light refers to light waves that are synchronized in phase and frequency. This means that the peaks and troughs of the waves line up neatly, which results in a consistent and uniform color. A common example of coherent light is that produced by a laser, which emits a narrow beam of light that is intense and can travel long distances without spreading out much. In contrast, regular light, like from a bulb, is made up of many different wavelengths that are not synchronized, leading to a mix of colors and less focus.