why red signals are . used as danger sign? explain
vivek84835:
Because red light is scattered the least by air molecules.
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red signals are used as danger sign because it shows that going beyond the road there is danger
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the red colour will be visible more than a blue colour.when the blue colour appears it occurs scattering and beam of light shifts.but at any distance the red colour will be visible morely than a blue colour .red colour also has less scattering of light...........
hope it helps u
hope it helps u
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