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Why is red colour selected for danger signal lights |
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Answer» Because it is least scatter Red colour is used for danger signals because red light has highest wavelength and it deviates the least so it can be seen from far away Red colour is least scattered by air molecules. It has the longest wavelength due to which it travels farther than any other colour. Becoz it has the longest wavelength than any colour and is scattered least by air components... |
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