Discussion
Assertion (A): Cyan, magenta and yellow are called minus red, minus green and minus blue.
Reason (R): Each removes one additive primary from the light passing through it.
Answer: A
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. Cyan absorbs the red third of the spectrum and passes green and blue; magenta absorbs green; yellow absorbs blue. Each subtractive primary is therefore white light minus one additive primary, which is why the two sets of three are complementary rather than unrelated.
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