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why are danger signal lights red in colour????
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Answer:
The primary reason why the color red is used for danger signals is that red light is scattered the least by air molecules. The effect of scattering is inversely related to the fourth power of the wavelength of a color. ... So red light is able to travel the longest distance through fog, rain, and the alike.
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Answer: danger signal lights are red in colour because red colour has the longest wavelength the red is the least scattered by fog and smoke therefore it can be seen in the same colour at a distance
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