Fluorescence: Certain materials exhibit fluorescence when exposed to UV light, which has applications in forensics, counterfeit detection, and some medical procedures.
Phototherapy: UV radiation is used in phototherapy to treat certain skin conditions, such as psoriasis and eczema.
Exposure to UV radiation can have both positive and negative effects. While it is essential for the synthesis of vitamin D and can be used for therapeutic purposes, overexposure to UV radiation from the sun or artificial sources can lead to skin damage, premature aging, and an increased risk of skin cancer.
To protect against the harmful effects of UV radiation, it is important to:
Use sunscreen with a high SPF rating
Wear protective clothing, including hats and sunglasses
Avoid prolonged exposure to direct sunlight, especially during peak UV hours
Use UV-blocking films or coatings on windows and eyewear
Study Guide
When studying ultraviolet waves, consider the following key points:
Practice solving problems related to UV radiation, such as calculating energy based on wavelength or understanding the relationship between UV exposure and sunscreen protection.
[Ultraviolet Waves] Related Worksheets and Study Guides:
Energy - A. Energy is involved in all physical and chemical processes. It is conserved, and can be transformed from one form to another and into work. At the atomic and nuclear levels energy is not continuous but exists in discrete amounts. Energy and mass are related through Einstein's equation E=mc 2 . B. The properties of atomic nuclei are responsible for energy-related phenomena such as radioactivity, fission and fusion. C. Changes in entropy and energy that accompany chemical reactions influence reaction paths. Chemical reactions result in the release or absorption of energy. D. The theory of electromagnetism explains that electricity and magnetism are closely related. Electric charges are the source of electric fields. Moving charges generate magnetic fields. E. Waves are the propagation of a disturbance. They transport energy and momentum but do not transport matter.
Relate temperature to the average molecular kinetic energy.