Physics · Appearance of objects in different light

What colour does a blue paper appear when illuminated under pure red light?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Blue
2Red
3Black✓
4Purple

Correct answer

Black

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What colour does a blue paper appear when illuminated under pure red light?

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What colour does a blue paper appear when illuminated under pure red light?

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