Discussion
Assertion (A): Red and green light give yellow while red and green paint give brown.
Reason (R): One is an additive process and the other a subtractive one.
Answer: D
Correct answer: Both A and R are true, and R is the correct explanation of A
Both are true and the reason gives the mechanism. Red and green lights add their power together and the sum stimulates the eye as yellow does. Red and green paints each absorb most of what the other reflects, so what survives both is a small amount of light across the middle of the spectrum - a dull brown.
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