Why are the 'danger signal' lights red in colour?

Open in App

Solution

Danger signal lights are red because this colour has the longest wavelength among all the colours. Also, it is the least scattered by fog, dust and smoke particles. This makes red light visible even from a longer distance.

Suggest Corrections

Similar questions

Why are danger signal lights red in colour?

Why are danger signals always red in colour ?

Why are the danger signals coloured red?

Join BYJU'S Learning Program