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A piece of paper that appears blue in sunlight is illuminated solely by a red light that is passed through a green filter. What colour does the paper appear under this illumination?
- a)Blue
- b)Black
- c)Green
- d)Red
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A piece of paper that appears blue in sunlight is illuminated solely b...
Black is the absence of all light. Things appear black when they do not reflect or emit light. White is the presence of all colors of visible light. Objects appear white when they reflect or emit all wavelengths of visible light (or at least three wavelengths - Red, Blue and Green - in equal intensity.
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Most Upvoted Answer
A piece of paper that appears blue in sunlight is illuminated solely b...
Correct anoswer is B .
justification:
The green filter absorbs all colour except green which it passes .So the red light will be absorbed by the filter which will pass no light .The paper will not be illumnated and so it appear black, regardlessof its initial colour.
justification:
The green filter absorbs all colour except green which it passes .So the red light will be absorbed by the filter which will pass no light .The paper will not be illumnated and so it appear black, regardlessof its initial colour.
Community Answer
A piece of paper that appears blue in sunlight is illuminated solely b...
The green filter absorbs all colour except green which it passes. so, the red light will be absorbed by the filter which will pass no light. The paper will not be illuminated and so it will appear black, regardless of its initial colour.
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A piece of paper that appears blue in sunlight is illuminated solely by a red light that is passed through a green filter. What colour does the paper appear under this illumination?a)Blueb)Blackc)Greend)RedCorrect answer is option 'B'. Can you explain this answer?
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