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.
Light travels through the hole in the black paper as the paper blocks the light's path except for the hole, allowing a beam of light to pass through. The beam of light will be more focused and directional due to the small size of the hole.
When light hits a white piece of paper, the paper reflects most of the light across the entire visible spectrum. This reflection is what makes the paper appear white to our eyes, as it doesn't absorb any specific color wavelength and instead reflects all wavelengths equally.
The paper appears dark because red light is absorbed by the blue pigment, not reflected. The blue pigment absorbs red light and reflects blue light, which is why the paper appears blue under white 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.
When you crumple a piece of paper, a physical change occurs. The paper's shape and appearance change, but its chemical composition remains the same.
The energy is absorbed by the paper. Technically, it heats the paper. But it would have to be quite a bright light before you'd notice the increase in temperature.
If you put a drop of iodine on a piece of paper, it will react with starch on the paper turning it blue-black. This is a common test for the presence of starch.
Light travels through the hole in the black paper as the paper blocks the light's path except for the hole, allowing a beam of light to pass through. The beam of light will be more focused and directional due to the small size of the hole.
When light hits a white piece of paper, the paper reflects most of the light across the entire visible spectrum. This reflection is what makes the paper appear white to our eyes, as it doesn't absorb any specific color wavelength and instead reflects all wavelengths equally.
The paper appears dark because red light is absorbed by the blue pigment, not reflected. The blue pigment absorbs red light and reflects blue light, which is why the paper appears blue under white 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.
Nothing.
Sure. Shine a flashlight on a piece of black satin or black construction paper, and watch the intensity of the blinding glare that's reflected back.
It might be a cold piece of paper, but there shouldn't be much difference otherwise.
No, a piece of paper is not a luminous object. Luminous objects emit their own light, like the sun or a light bulb. Paper reflects light and may appear visible when illuminated, but it does not produce light on its own.
take a piece of paper and put it in a bottle and take a piece of string and light the string
It turns to ash