Question

light of red colour are used for danger signals give reason
​

Answer 1

Answer:

$\huge \green{answer}$

Danger signals are red in color because it is scattered the least by air molecules. The effect of scattering is inversely related to the fourth power of the wavelength of a color. ... So, red light is used as a danger signal as it is able to travel the longest distance through the fog, rain, etc.

Answer 2

Answer:

Danger signals are red in color because it is scattered the least by air molecules. The effect of scattering is inversely related to the fourth power of the wavelength of a color. ... So, red light is used as a danger signal as it is able to travel the longest distance through the fog, rain, etc.