Why is red colour preferred for danger signal lights? – McqOptions

MCQOPTIONS

1.	Why is red colour preferred for danger signal lights?
A.	Because red colour light has shorter wavelength
B.	Because red colour is preferred by many
C.	Because red colour light has longest wavelength and least scattered by fog and smoke
D.	Because red colour is bright to eyes
Answer» D. Because red colour is bright to eyes

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