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why we use red light is used in traffic signals?

7 years ago


Answers : (1)


The 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.

7 years ago

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