Quick practice
Question 1 of 5
Assertion (A): Danger signals are always red in colour.
Reason (R): Red light has the longest wavelength in the visible spectrum and is scattered the least by fog or smoke.
A
Both (A) and (R) are true, but (R) is NOT the correct explanation of (A).
B
(A) is true, but (R) is false.
C
(A) is false, but (R) is true.
D
Both (A) and (R) are true, and (R) is the correct explanation of (A).
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