Ultra violet (UV) rays have several practical applications across different fields.
UV radiation, often known as black light, is utilized in various ways, from security features to sterilization processes.
Key Applications of UV Rays
Based on their interaction with different materials and biological entities, UV rays serve important functions in everyday technology and scientific processes. Some notable applications include:
- Currency Authentication: UV rays are used to detect fake currency notes by revealing hidden security features that are only visible under UV light.
- Forensic Science: UV radiation, also called black light, is used to photograph fingerprints on surfaces, making them visible for analysis.
- Water Purification: UV rays are also used to kill harmful bacteria from the water with the help of water purifiers, providing a chemical-free method of disinfection.
Summary of Applications
Here's a quick overview of these uses:
| Application | Description | Relevant Property |
|---|---|---|
| Fake Currency Detection | Reveals hidden security markings | Fluorescence/Absorbance |
| Fingerprint Photography | Makes latent fingerprints visible | Fluorescence (often with powders) |
| Water Purification | Kills bacteria and other microorganisms in water | Germicidal effect |
These examples highlight how UV technology plays a role in security, forensics, and public health.
