Question

At the traffic signals, red light is used for stop due to the reason that it can be seen from a distance. The phenomenon involved is known as

Answer 1

Answer:

Explanation:

the primary reason why the color red is used for danger signals is that red light is scattered the least by air molecules. The reason behind the scattering can be explained by Rayleigh scattering. The effect of scattering is inversely related to the fourth power of the wavelength of a color.

Answer 2

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