Question

what would happen if danger light were blue in colour justify​

Answer 1

Answer:

The wavelength of blue colour is short, so it will be easily scattered by the atmospheric particles. As a result, unlike red colour, we won't be able to see the danger sign from a distance.

Answer 2

If danger light were blue in colour then we won't be able to see the danger sign from a distance.

• Red is the colour used for danger signs because it is the least scattered by the atmospheric particles. The fourth power of a color's wavelength has an inverse relationship with the effect of scattering. Red is the colour that is least scattered since it has the highest wavelength among the various colours. Since red light is capable of traveling longest through fog, rain, etc., it is utilized as a warning signal.
• On the other hand, because blue has a short wavelength, atmospheric particles will not have any trouble scattering it. Because of this, we won't be able to recognize the danger sign from a distance like we can with red. Due to its limited range in adverse weather conditions like rain, fog, etc. blue light is not adopted as a warning signal.

Therefore, if danger light were blue in colour then we won't be able to see the danger sign from a distance.

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