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Phosphorescent coating on the surface of the paper.
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∙ 12y ago
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Why does a poster glow under black light?
A poster glows under black light if there is white designs on it. Anything white glows under black light. The reason why is because those things have phosphors on them which can only be detected under black light.
How does color of paper white or black affect temperature?
white reflects light and black absorbs it white-cooler black-hotter
What happens as white light hits black ink on a piece of white paper?
The light is absorbed by the black ink and reflected by the white paper surrounding the ink. That is why you can see the ink clearly.
If pieces of black paper and white paper are laid on snow in sunshine what is likely to happen?
The snow under the black paper will melt faster as the paper absorbs the heat while the white paper reflects it.
What happens if you put a white piece of paper under a green light?
If you put a piece of white paper under a green light all that will happen is the paper will turn green. The only time this will vary is if you have special ink that will show up under certain colored light.
How electrical energy is converted into heat energy?
Do a experiment on how black and white paper have different warmth under a light.
How is heat energy converted into electrical energy?
Do a experiment on how black and white paper have different warmth under a light.
What if your diamond looks opaque white under a black light?
Then, your diamond looks opaque white under a black light.
Why does a poster glow under black light?
A poster glows under black light if there is white designs on it. Anything white glows under black light. The reason why is because those things have phosphors on them which can only be detected under black light.
How does color of paper white or black affect temperature?
white reflects light and black absorbs it white-cooler black-hotter
What absorbs less heat black paper or white cloth?
White clothBlack paper absorbs more because black absorbs all colours of light and turns the light into heat.
What happens as white light hits black ink on a piece of white paper?
The light is absorbed by the black ink and reflected by the white paper surrounding the ink. That is why you can see the ink clearly.
What colour light must be used when developing photographs?
If you are meaning black and white or colour films there has to be no light what so ever. Paper printing black and white prints can be done under safelight conditions, usually a deep yellow/orange safelight. Colour printing should be in total darkness. ordinary black & white? yellow or red panchromatic black & white? no light color? no light
If pieces of black paper and white paper are laid on snow in sunshine what is likely to happen?
The snow under the black paper will melt faster as the paper absorbs the heat while the white paper reflects it.
What happens if you put a white piece of paper under a green light?
If you put a piece of white paper under a green light all that will happen is the paper will turn green. The only time this will vary is if you have special ink that will show up under certain colored light.
Why does black paper absorb light faster than white paper?
This is because back aborbs heat where as white reflects heat
Does black paper absorb wave lengths of light?
No black paper is not translucent ts opaque
