Question

why danger signs made from red colour?​

Answer 1

Answer:

FLW ME

Explanation:

Danger signals are red in colour because the red colour is scattered the least by air, water or dust molecules. The effect of scattering is inversely related to the fourth power of the wavelength of a given colour. Since the colour red has the highest wavelength of all the colours it gets scattered the least.

Answer 2

Answer:

because red light has maximum wavelength so it refracts least in fig or dust