What is "photosensitive" property?

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In summary, photosensitive materials are substances that react to light, resulting in physical, chemical, or biological changes. These materials contain light-sensitive molecules or compounds and have various applications, such as photography, solar energy production, and medical procedures. The photosensitive property can be controlled by adjusting factors such as light intensity, temperature, and chemical presence.
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lingling
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Why the charge on the drum in a photocopier disappears when light shines upon it? My solution says that it's because the drum is photosensitive. but what is "photosensitive" property ?
 
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The term "photosensitive" refers to an object's ability to react or respond to light. In the case of a photocopier, the drum is made of a material that is photosensitive, meaning it can be affected by light. When light shines on the drum, it triggers a chemical reaction that causes the charge on the drum to disappear. This is an important property in the functioning of a photocopier, as it allows for the transfer of toner onto the paper, creating a copy of the original document. Essentially, the photosensitive property of the drum is what allows for the photocopying process to occur.
 

1. What does it mean for a substance to be "photosensitive"?

Photosensitive refers to the property of a substance to react or change in some way when exposed to light. This reaction can be physical, chemical, or biological in nature.

2. How do photosensitive materials work?

Photosensitive materials contain molecules or compounds that are sensitive to light. When these molecules or compounds are exposed to light, they undergo a reaction that can result in a change in color, shape, or other physical properties.

3. What are some examples of photosensitive materials?

Some common examples of photosensitive materials include photographic film, sunscreens, photovoltaic cells, and certain types of plastics used in 3D printing.

4. What are the practical applications of photosensitive materials?

Photosensitive materials have a wide range of practical applications, including photography, solar energy production, and photocatalysis. They are also used in various medical and scientific procedures, such as photodynamic therapy and photochemical synthesis.

5. How can the photosensitive property be controlled or manipulated?

The photosensitive property of a substance can be controlled or manipulated by adjusting factors such as the intensity and wavelength of light, temperature, and the presence of other chemicals. This allows for precise and specific reactions to occur, making photosensitive materials useful in various industries and research fields.

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