Question

Define Ultraviolet waves and give some examples of them.

Answer 1

Hint: An introduction into waves is necessary to relate about ultraviolet waves. Waves are basically oscillations or disturbances caused due to movement of energy from one spot to another without actual movement or inclusion of matter. Based on generator media, propagation media and oscillation method waves can be categorized into several types like transverse, longitudinal, electromagnetic, matter and mechanical waves.

Complete step by step solution:
Ultraviolet Waves (UV Waves) are categorized into electromagnetic waves produced by indefinite heating of a surface to a temperature irresistible like solar UV produced by the Sun. UV waves are basically electromagnetic waves which lie in a visible spectrum between Visible Light and X-Ray. UV waves have a shorter wavelength than visible light and a longer wavelength than X-Ray. The wavelength of UV waves lies between 10nm to 400 nm. Due to their least difference within the wavelength of visible light and UV waves, UV waves are visible through naked eyes by some insects like bumblebees. UV waves can easily be blocked by thick clouds and have a great hand in global warming.
UV waves are further categorized into:
Near-ultraviolet radiation (300 nm to 400 nm),
Middle-ultraviolet radiation (200 nm to 300 nm),
Far-ultraviolet radiation (100 nm to 200 nm), and
Extreme-ultraviolet radiation (below 100 nm)
Examples of UV waves include:
UV-A radiation/Long wave UV (315nm-400 nm) (99% of rays UV rays from sun),
UV-B radiation/Medium wave UV (280nm-315 nm), and
UV-C radiation/Short wave UV (100nm-280 nm).

Note:
UV waves when in moderation and crossing through a thick layer of ozone is normal and requires light but in cases where there is reduction in Ozone layer, UV-B radiation increases in the environment and becomes hazardous for all types of lives from marine to land to air. Though less hazardous to X-Ray because of their low penetrating power, UV waves can cause skin burns and adversely affect upper skin layers.