The danger signals are red while the eye is more sensitive to yellow because

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Coach Science

Q. The danger signals are red while the eye is more sensitive to yellow because

(A) absorption in red is less than yellow and hence red is visible from a distance
(B) scattering in yellow light is less than red
(C) the wavelength of red light is more than yellow light
(D) none of the above reasons

Correct Answer - Option(C)

Explanation by: Admin

This is because the scattering in red light is less than that of yellow colour. The longest visible wavelength is red and the shortest is violet. The wavelength of red light is more than yellow light.

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