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vin300
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Why does a wet piece of paper let through more light than a dry one?
Diffuse reflection - Generally, when light strikes the surface of a (non-metallic and non-glassy) solid material, it bounces off in all directions due to multiple reflections by the microscopic irregularities inside the material ... and by its surface, if it is rough.
vin300 said:Why does a wet piece of paper let through more light than a dry one?
The translucence of wet paper refers to the degree to which light is able to pass through the paper when it is wet. It is a measure of the paper's transparency or opacity.
Wet paper becomes translucent because the water in the paper causes the fibers to swell and separate, allowing more light to pass through. This results in a decrease in opacity and an increase in translucence.
The translucence of wet paper can be affected by the type and quality of the paper, the type and amount of water used, and the method of wetting the paper. Temperature and humidity can also play a role in the translucence of wet paper.
Wet paper translucence is often utilized in art and design, as well as in scientific experiments. It can also be used to create special effects in photography and film. Additionally, the translucence of wet paper can be used to test the quality and absorbency of paper products.
The translucence of wet paper can be measured using a variety of methods, such as spectrophotometry or visual inspection. There are also specialized instruments, such as a densitometer, that can accurately measure the translucence of wet paper.