Danger signals are generally red as red light (a)is least bright (b)undergoes least deviation (c)has lowest velocity (d)gives comfort to eye
option B. The number one cause why the coloration purple is used for chance alerts is that pink mild is scattered the least through air molecules. The impact of scattering is inversely associated with the fourth energy of the wavelength of a shade. Therefore blue which has the least wavelength of all of the seen radiations is scattered the maximum and purple which has the very best wavelength of all of the colors we are able to see is scattered the least. So purple mild is capable of journey the longest distance thru fog, rain, and the alike. Also, purple is a shade we inherently understand as one this is related to risk.
