Question

why danger signs are made in red color?

Answer 1

Hey,

Red colour have high wavelength.

They are not easily scattered by fog or dust or water molecules.

So,they become visible to us from a long distance so that we can take preventive steps.

HOPE IT HELPS:-))

Answer 2

The primary reason why the color red is used for danger signals is that red light is scattered the least by air molecules. The effect of scattering is inversely related to the fourth power of the wavelength of a color. ... These reasons make danger signals the most effective when they are painted in red.