Which one of the following colours may be obtained by combining green

Which one of the following colours may be obtained by combining green and red colours ?

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Blue

Magenta

Pink

Yellow

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This question was previously asked in

UPSC NDA-1 – 2021

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By combining green and red colours of light, the colour yellow is obtained.

This refers to additive colour mixing, which is relevant for light. The primary colours of light are Red, Green, and Blue (RGB). When these primary colours are mixed in different proportions, they produce other colours. Combining two primary colours results in a secondary colour: Red + Green = Yellow, Red + Blue = Magenta, Green + Blue = Cyan.

Subtractive colour mixing, relevant for pigments and dyes, works differently. The primary colours in subtractive mixing are Cyan, Magenta, and Yellow (CMY). Combining these primaries removes wavelengths of light. For example, mixing yellow and magenta paints typically results in red.

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