Assertion A The danger signals is made up of red colour Reason R Red colour is scattered the least n...........

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Assertion (A): The danger signals is made up of red colour.

Reason (R): Red colour is scattered the least.

Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but (R) is not the correct explanation of (A).

(A) is true but (R) is false.

(A) is false but (R) is true.

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Explanation:

The longest wavelength within the visible spectrum is the red light. Light of short wavelength is scattered much more than the light of long wavelength.? Red colour is scattered the least by air molecules so that it can be seen from far away. The apppearance of the red colour of sun at sun set is due to the fact that neighbouring colours ae scattered away in the path and light reaching the observer is predominantly red.