ULTRA VIOLET LIGHT

HOW IS UVL CREATED

• Uv radiation is present in sunlight
• Which is also produced by electric arcs and specialized lights such as Mercury vapor lamps,tanning beds, and black lights.
• They are also not visible to the human eye.

APPLICATION OF WAVE IN SOCIETY

• Uv lights can be found in tanning beds and black lights.
• This wave is used for these devices cause we can't see the rays.
• And in more common cases are used for sterilization

MEDICAL WAYS ITS USED

• Hospitals use UV lamps to sterilize surgical equipment.
• In operation theaters also, food and drug companies also use uv lights to put small doses of vitamin D because uv light provides vitamin D.
• And is also used by doctors to prevent skin disorders

ELECTROMAGNETIC SPECTRUM

WAVE LENGTHS COMPARSION

POSSIBLE DANGERS OF TOO MUCH UV LIGHT

• More than 99% of uv radiation is asorbed by the eyes causing corneal damage, cataracts, and skin cancer which are all outcomes of too much exposure to UV light.

WAVE LENGTH AND TYPE OF ELECTROMAGNETIC WAVE

• Uv light has a wave length of (1.5x10^-5) to about (4x10^-7) inches.
• That's about the size of a piece of bacteria and a humans cell.
• Uv light frequency from about (8x10^14) to (3x10^16) cycles per second which can be compared to an FM radio.

Interesting FACT

• Uv lights can destroy many types of molds,viruses, and bacterias
• And the human eye can't detect UV Rays because it is emitted at such a high frequency that our eyes can't physically see them.

ONE MORE Interesting FACT

• Ultra violet light has a range of wavelengths that are all shorter than the visible light spectrum.
• The eyes can't process a light wavelength that short.
• We all have rods and cones in our eyes to detect different wavelengths however none of them can detect ultraviolet light.

CITATION PAGE

• "Ultraviolet Radiation".encyclopedia of britannica online.
• "What is ultraviolet light?".Livescience.tech-media Network.
• "46 fascinating facts about ultraviolet light and radiation".Web.