why red colour is used to indicate danger
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Answered by
3
The wavelength of red colour is maximum in the spectrum. From larger distances also you will be able to identify red colour. that's why traffic signals and danger signs in red colour.
Answered by
1
Besides drawing attention, Red light, passing to the so call 'red body' scatters the least due to its big wavelength. Therefore, red light
reaches farther than any other of the white light, without getting much scattered by air molecules.
reaches farther than any other of the white light, without getting much scattered by air molecules.
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