Grade Upto college levelGeneral Knowledge
why we use red light is used in traffic signals?
why we use red light is used in traffic signals?
1 Answer
Vijay Luxmi Askiitiansexpert
Approved Tutor Answer17 Years agoThe reason is that it has a greater wavelength.
Due to its longer wavelength does not get scattered by the particles in the atmosphere n hence reaches our eyes more distinctly than the other colors minus much scattering. Green gets scatterd more red but less than blue, which r d basic colours. Hence, red is used for stop n danger while green if for go.
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