Why is red light used to stop in traffic signals?
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Answer:
Because the red is the sign. of danger
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Explanation:
The main reason why the red colour is used to in the traffic signals to stop the vehicle is that red is scattered the least by the air molecules. For a particular colour, the scattering effect is inversely proportional to the power of wavelength. ... Since red is the most scattered light, it has the highest wavelength.
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